The History of the Gibson J-45
The Journey of the Legendary "Workhorse"~

Part 2

The J-45: A Legend Passed Down Through the Generations

Part 1: Introduction to the History of the Gibson J-45 (1942–)

Part 2: 1964–1969 Timeline (This Page)

Gibson 1965 J-45 Adj.

Based on the serial number stamped on the back of the headstock, this is a 1965 model.
A distinctive feature is that the cherry color along the rim of the body top has faded, giving it an overall orange appearance.
If it fades further, it will look like a natural finish, making it almost indistinguishable from a J-50.
Since there are no structural differences between the J-45 and J-50, you must identify them by the stamp inside the body, or visually if the stamp has faded.
After seeing many of them, you’ll start to notice the difference between the faded cherry finish and the natural finish of the J-50. This fading is typically seen on models from 1963 to 1966. The adjustable bridge features a wooden saddle. The wood used is primarily rosewood and ebony.

Additionally, you can see that a black paint finish known as a "stinger" has been applied to the joint between the neck and the body.
Originally, this "Stinger" was applied as a decorative element on the back of the headstock of higher-end models such as the J-200, Super 400, and L-5; however, it was occasionally applied in this manner to conceal machining marks or damage incurred during the manufacturing process.
Nowadays, it has become a feature that appeals to enthusiasts, such as when it is intentionally added as a custom option.

Gibson 1965 J-45 Adj.

Based on the serial number stamped on the back of the headstock, this is a 1965 model.
Major specification changes were made to vintage Gibsons in this year. The neck, which had a nut width of about 42mm to 43mm, was reduced to a nut width of about 40mm, marking the birth of the so-called "narrow neck." It was a revolutionary event, as similar specification changes were made not only to acoustic guitars but also to electric guitars.
This had a major impact on playability and sound.

Which is “better”—the narrow neck or the regular neck?

This question has likely been asked countless times over the years. Nowadays, the view that “narrow necks are unpopular” may be in the minority.
Of course, in the vintage market, it is a fact that regular-neck models from before 1965 hold greater value as antiques and command higher prices.
However, the narrow neck has its own unique appeal. Take playability, for example. For players who frequently use the “Western grip”—where the thumb frets the root note—I believe the narrow neck is easier to grip and offers greater freedom of expression. Singer-songwriter Motohiro Hata uses a 1966 J-45, and I get the impression he plays precisely in this style.
In terms of sound, the narrow neck also has a distinctive character. Its appeal lies in a sharp, crisp, and well-defined tone.A prime example is the 1967 J-45 used by Takuro Yoshida. On the track “Ringo” from his classic album *Genki desu.*, Takahiko Ishikawa plays using Yoshida’s J-45, allowing listeners to fully appreciate that crisp, cutting sound. It features percussive bass and a tight tone with a hint of compression.
This is a charm that can truly only be found in J-45s from the late 1960s.

Gibson 1966 J-45 Adj.

Based on the serial number stamped on the back of the headstock, this is a 1966 model.
With its cherry sunburst finish fading beautifully, it has the quintessential '66 look and feel. In addition to the narrow neck, the 14° headstock angle is another characteristic of this period.
This feature also began to be adopted starting in 1965.
Another noteworthy feature is the tuners used.
They are manufactured by Gotoh, one of Japan’s leading parts manufacturers. While they are commonly found on 1967 J-45s and small-body models, it’s extremely rare to see them on a 1966 model.
The knobs on this particular guitar have been replaced with ones from the same era that are chunkier and thicker than usual, but
the original also featured Goto-made tuning pegs.

Gibson 1966 J-45 Adj.
Cherry Red “BGN” Stamped

Based on the serial number engraved on the back of the headstock, this is a 1966 model.
It features a distinctive cherry red finish on the body top, rather than a sunburst. The first question that comes to mind is why it has a 1966 serial date but a cherry finish. Generally, acoustic guitars with custom colors (primarily cherry red or ebony black) have serial dates from 1967 to 1969. The key to resolving this question is the “BGN” stamp on the back of the headstock.

We believe this stamp was not added by a later owner but was applied at the Gibson factory. “BGN” is one of the identification marks stamped on the back of the headstock at the Gibson factory and is believed to be an abbreviation for “Bargain.” This indicates that the guitar was sold to employees at a significant discount and is said to be a model that never entered the general market. Therefore, we believe this particular guitar had issues that prevented its general distribution and was sold to employees in Cherry Red.

Regarding Gibson Acoustic’s custom colors, we have been unable to confirm any official records explaining why they were created or the circumstances under which they were produced,
as no official records have been found to confirm these details. Regarding custom colors for electric guitars, the Firebird, which debuted in 1963, featured them, and a color chart exists, allowing users to select their preferred options.

The characteristics of acoustic custom colors are as follows:
- Often seen from 1967 to 1969
- Many instruments bear a "Second" stamp
- Some models feature a four-piece body top
- Also found on small-body models such as the B-25 and LG-1, as well as models like the Epiphone FT
- Rare colors such as brown also exist

Given these circumstances, the most plausible theory at present is that units which could not be shipped as genuine products under standard criteria were made marketable by altering the appearance of the finish through painting. In other words, the view is that custom colors were utilized with the aim of reducing factory yield loss.

Gibson 1967 J-45 Adj.

Based on the serial number stamped on the back of the headstock, this is a 1967 model.
The appearance of the Cherry Sunburst color changed starting this year. The red on the rim is a brighter, muted shade, and it does not fade as much over time as on models made up to 1966.
One can imagine that fading of the Cherry Sunburst finish was already a concern at this time, leading to a change in the paint to prevent the color from fading.
The tuners are made by Gotoh. The bushings are chrome (with the 4th string replaced with nickel).

Gibson 1967 J-45 Adj.

Based on the serial number stamped on the back of the headstock, this is a 1967 model.
The sunburst finish is very striking. Brown-toned sunburst colors made a comeback starting this year.
It differs from models from the early 1960s in that the rim retains a reddish hue even after fading.
It bears a striking resemblance to the J-45 used by Takuro Yoshida.
It appears he used various types of saddles on his guitar, including ceramic, fixed, and wooden saddles.

Gibson 1968 J-45 Adj.

Although the serial date is 1970, based on the Gibson logo design on the pickguard and the color scheme, this instrument has been determined to be a 1968 model. It offers a completely different impression from the Tobacco Sunburst mentioned earlier, with the black color on the rim clearly preserved.Upon inspecting the back of the headstock, I noticed a "Second" stamp, leading me to believe the finish was reworked at the factory. The paint has a slightly thicker texture, and there are visible signs that the neck was also refinished.
That said, it is certainly in excellent condition, and it serves as a textbook example of what a vintage J-45 in Tobacco Sunburst would have looked like back in the day.
As for the Gibson logo on the pickguard, just like with the Custom Color models, the details of its background and other aspects are unclear.
We can confirm that this design appears on the back cover of the 1966 catalog. While some suggest it was inspired by the image of a hand pressing a string against a fret, I personally think the interpretation that it represents the "Sound Barrier" is quite plausible.
Even when this graphic is featured in official Gibson merchandise, it is referred to as "Soundwave."

Gibson 1968 J-45 Adj.
Ebony Black

Based on the Gibson logo design on the pickguard, the color scheme, and the bridge specifications, this instrument is identified as a 1968 model.
This is an "Ebony Black" model, featuring a striking jet-black finish and yellowish plastic trim.
If you look closely, you can see that this particular guitar has a four-piece body.
While this would be noticeable on a sunburst or natural finish, it certainly doesn’t stand out on a jet-black body.

Gibson 1968 J-45 Adj.
Cherry Red

Based on the serial number, bridge, and other specifications, this instrument is identified as a 1968 model.
You can see that this one also has a four-piece top. The cherry red has faded over time, giving it a pale, "cherry" color.
It is not uncommon to find instruments that have faded in this way. This is a finish unique to vintage instruments.
The pickguard is a white, screw-mounted type without the Gibson logo. Originally, the screws were also painted white, but the paint has peeled off, exposing the metal.

Gibson 1968 J-45 Adj.
Ebony Black

Based on the serial number stamped on the back of the headstock, this is a 1968 model.
It features a striking ebony finish. The pickguard is a white, screw-mounted type without the Gibson logo. The yellowed patina from age is simply irresistible.
The binding has undergone a similar aging process, and the combination of yellow and black is truly magnificent.
This is the quintessential vintage Ebony Black look.
The bridge is a Downberry. This specification began appearing with the 1968 serial dates.
And this 1968 J-45 Ebony Black with the Downberry bridge has the exact same specs as the "No. 1" model that Kazuyoshi Saito uses as his main guitar. He actually removed the saddle screws and uses it with the saddle glued directly to the bridge.

Gibson 1969 J-45 Adj.

Based on the serial number engraved on the back of the headstock, this is a 1969 model.
In terms of structural features, this model features a Downberry bridge—introduced in 1968—along with a 43mm nut width, an enlarged bridge plate, and an L-shaped neck block, reflecting the transitional specifications characteristic of the early 1970s.
Rosewood is used for the bridge plate. Since maple is sometimes used even for this size, the wood used may vary by individual instrument.
It is certainly a large size. Similar structural changes can be seen in Martin guitars from the same period.
Martin switched the bridge plate material from maple to rosewood in 1968, and increased its size in 1969.
These trends suggest that structural reforms prioritizing strength were underway across the acoustic guitar industry regardless of manufacturer, and it is believed that this trend is strongly reflected in the design of the J-45.

Gibson J-45 Timeline
(1942–1969)

*Please note that this is statistical data and is provided for reference only.
If you have "seen" or "own" any irregular or special models, please send the information to the email address below.
Email Address: aco@tcgakki.com
Attn: Inoue, Advance Guitars

1940s

1942–1945

It is extremely difficult to categorize the so-called "Banner period" from 1942, when the J-45 was born, to 1945 as a single group.
The specifications confirmed to date are summarized as follows.
In addition to these, there were models without a truss rod,
the body top was made of four pieces, or the wood used for the neck block was poplar instead of mahogany.
and given that it was wartime, the models are full of unique specifications.
Models with maple sides and back feature a dark-toned finish.

~Main Specifications~
[Finish] Sunburst

[Body Top]: Spruce or Mahogany
[Body Sides & Back]: Mahogany or Maple *Some models are laminated
[Neck]: Mahogany or Maple (3-piece/5-piece)
【Fingerboard】: Brazilian Rosewood or Gumwood
【Bridge】: Brazilian Rosewood or Gumwood (Rectangular)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Scalloped X-bracing

【Saddle】:Straight saddle
【Tuners】:Kluson 3-in-line open-back
【Pickguard】:Celluloid teardrop (small size) tortoiseshell pattern or fire stripe

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm–45mm
【Head Angle】:17°
【Head Taper】:Yes
【Number of Frets】:19

【Logo】Script & Banner
【Soundhole Ring】Single ring, 7-ply
【Body Binding】Multi or Single

 

1946–1947

We believe that the wood used was standardized by 1946.
These are the familiar specifications of the J-45.
The soundhole ring and body binding were simplified with fewer layers of veneer.
Additionally, the banner head was discontinued, and the design became one featuring only the script logo.
and in 1947, the block-style modern logo began to appear.

~Main Specifications~
[Finish] Sunburst

[Body Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Rectangular)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Scalloped X-bracing

【Saddle】:Straight Long Saddle
【Tuners】:Kluson 3-in-line open-back
【Pickguard】: Celluloid Teardrop (Small Size) Tortoiseshell Pattern

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm–45mm
【Head Angle】:17°
【Head Taper】:Yes
【Number of Frets】:19

【Logo】Script or Modern
【Soundhole Ring】Single ring, 3-ply
【Body Binding】Single

 

1948

The shape of the bridge began to change in 1948.
While the rectangular shape remained the primary design until then, the Upper Belly became the mainstream style starting in 1949,
and individual models with the down-belly design seen on the Southern Jumbo from the Banner era (Recruit) have also been confirmed.
The 43mm nut width became the standard, and it is believed that the so-called extra-thick necks disappeared around 1947–1948.

~Main Specifications~
[Finish] Sunburst

[Body Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Rectangular, Upper Belly, or Down Belly)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Scalloped X-bracing

【Saddle】:Straight Long Saddle
【Tuners】:Kluson 3-in-line open-back
【Pickguard】:Celluloid teardrop (small size) tortoiseshell pattern

【Scale Length】:Medium Scale
【Nut Width】: Approx. 43mm
【Head Angle】:17°
【Head Taper】:Yes
【Number of Frets】:19

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Single

 

1949

In 1949, Kluson Deluxe tuners with gear covers began to be used.
During this period, the cover featured a single row of "KLUSON DELUXE" engraving,
and the design featured no hole for the peg shaft on the inside of the gear cover.
It is believed that the body trim binding—3-ply on the top and single-ply on the back— was also established around this time.

~Main Specifications~
[Finish] Sunburst

【Body Top】: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry or, very rarely, Rectangular)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Scalloped X-bracing

【Saddle】:Straight Long Saddle
【Pegs】:Kluson 3-in-line open-back or Kluson Deluxe Tuners "Single Line" (no post holes)
【Pickguard】:Celluloid teardrop (small size) tortoiseshell pattern

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】:Yes
【Number of Frets】:19

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1950s

1950–1954

In the early 1950s, specifications varied regarding the bridge saddle, head taper, and tuning pegs.
While the model year can be identified by the Factory Order Number (FON),
many instruments have faded markings, so I recommend choosing based on your preferred specifications, sound, and playability.

~Main Specifications~
[Finish] Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Scalloped X-bracing

【Saddle】: Straight Long Saddle (also found on 1954 models) or Straight Short Saddle (also found on 1952 models)
【Pegs】:Kluson Deluxe Tuners "Single Line" (no post holes) (mainly until 1952) or "No Line" (no post holes) (mainly 1952–1953) or "No Line" (with post holes) (mainly 1953–)
[Pickguard]: Celluloid teardrop (small size) tortoiseshell pattern

【Scale】: Medium scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】: Present (confirmed on 1953 models) or Absent (confirmed on 1951 models)
【Number of Frets】:19

【Logo】Modern
【Soundhole Ring】Single ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1955

The main specification changes for 1955 are as follows:
- Scalloped X-bracing → Non-scalloped X-bracing
- Small pickguard → Large pickguard
- 19 frets → 20 frets
Since this was a transitional period, it is believed that various combinations of specifications existed.

~Main Specifications~
[Finish] Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
[Neck]: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】:Maple (Small Size)
【Bracing】: Scalloped X-bracing or Non-scalloped X-bracing

【Saddle】: Straight Short Saddle
【Pegs】: Kluson Deluxe Tuners "No-Line" (with post holes)
【Pickguard】: Celluloid teardrop (small size) tortoiseshell pattern or large size

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【Head Angle】:17°
【Head Taper】: None
【Number of Frets】: 19 or 20

【Logo】Modern
【Soundhole Ring】Single ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1956

The adjustable saddle was introduced in 1956.
Also, in a minor detail, the bridge plate became slightly larger,
and the height of the bracing was lowered.

~Main Specifications~
[Finish] Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】: Maple (Small Size)
【Bracing】: Non-scalloped X-bracing

【Saddle】: Straight Short Saddle or Adjustable Saddle (Aluminum Bass)
【Pegs】: Kluson Deluxe Tuners "No Line" (with post holes) or Kluson Deluxe Tuners "Single Line" (with post holes)
[Pickguard]: Tortoiseshell-pattern Celluloid (Large Size )

【Scale】: Medium Scale
[Nut Width]: Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】: None ( )
【Number of Frets】: 20

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1957

Aluminum adjustable saddles Bass remained the mainstream this year as well,
examples with glossy ceramic saddles and large screws, typical of the late 1950s, have also been identified.

~Main Specifications~
[Finish] Sunburst

【Top】: Spruce
【Body Sides & Back】: Mahogany
[Neck]: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】: Straight Short Saddle or Adjustable Saddle (Aluminum Bass or Glossy Ceramic Large Screw)
【Pegs】: Kluson Deluxe Tuners "Single Line" (with post holes)
【Pickguard】:Tortoiseshell-pattern Celluloid (Large Size)

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1958

~Key Specifications~
【Finish】Sunburst

【Body Top】: Spruce
[Body Sides & Back]: Mahogany
[Neck]: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】: Straight short saddle or adjustable saddle (glossy ceramic large screws)
【Pegs】:Kluson Deluxe Tuners "Single Line" (with post holes)
【Pickguard】:Tortoiseshell-pattern Celluloid (Large Size)

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1959

While large screws are the standard for studs used in adjustable saddles,
perhaps because the switch to smaller screws was set to take effect the following year, examples featuring the smaller screw specification can be found starting from this year.

~Main Specifications~
[Finish] Sunburst

【Top】: Spruce
【Body Sides & Back】: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】: Straight short saddle or adjustable saddle (glossy ceramic large screw or, very rarely, small screw)
【Pegs】:Kluson Deluxe Tuners "Single Line" (with post holes)
【Pickguard】:Tortoiseshell-patterned Celluloid (Large Size)

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】: 17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1960s

1960

While small screws are the norm for the studs used on adjustable saddles, very rarely, models with large screws can be found.
Another major change from this year onward is that the neck profile became thinner. However, instruments with the thicker neck profile typical of the 1959 model can still be found on rare occasions.

~Main Specifications~
[Finish] Sunburst

[Body Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Berry)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】: Straight short saddle or adjustable saddle (glossy ceramic small screw or, very rarely, large screw)
【Pegs】:Kluson Deluxe Tuners "Single Line" (with post holes)
【Pickguard】:Tortoiseshell-patterned Celluloid (Large Size)

【Scale】: Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】: 17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

1961

In 1961, the standard finish for the J-45 became Cherry Burst, completely transforming its visual appearance.

~Main Specifications~
【Finish】Cherry Sunburst or (very rarely) Brown Sunburst

【Body Top】: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (Upper Belly)
【Bridge Plate】:Maple (Small Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】:Straight Short Saddle or Adjustable Saddle (Glossy Ceramic Small Screws)
【Pegs】:Kluson Deluxe Tuners "Single Line" (with post holes)
【Pickguard】:Tortoiseshell-pattern Celluloid (Large Size)

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Single Ring, 3-ply
【Body Binding】Top: 3-ply; Back: Single

 

1962

Starting in 1962, the straight saddle was discontinued and replaced exclusively by the adjustable saddle.
Although extremely rare, some models can be found with plastic bridges.
In terms of appearance, the soundhole rosette began to be changed to a double-ring design.
It is also said that the bridge plate was changed from solid wood to plywood,
this could not be confirmed in this investigation, so it will remain a subject of further research.

~Main Specifications~
[Finish] Cherry Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
[Neck]: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (upper belly) or, very rarely, plastic (upper belly)
【Bridge Plate】: Maple (Small Size) or Maple Plywood
【Bracing】:Non-scalloped X-bracing

【Saddle】: Adjustable saddle (glossy ceramic small screws or, very rarely, wood)
【Pegs】:Kluson Deluxe Tuners "Single Line" (with post holes)
【Pickguard】:Tortoiseshell-patterned celluloid, large size

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】: 17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Single ring (3-ply) or double ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

1963

Many models with plastic bridges began to appear.
The bridge plate was changed to 1 to 3 layers of maple plywood, and the size also became slightly larger.
In addition to glossy ceramic saddles, matte ceramic saddles,
and across the Gibson Acoustic lineup, models with wooden saddles made of ebony or rosewood also appear, resulting in a wider variety of options.

~Main Specifications~
[Finish] Cherry Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (upper belly) or Plastic (upper belly)
【Bridge Plate】: Maple, 3-piece (medium size)
【Bracing】:Non-scalloped X-bracing

【Saddle】: Adjustable saddle (glossy ceramic small screws or matte or wood)
【Pegs】:Kluson Deluxe Tuners "Single Line" (with post holes)
[Pickguard]: Tortoiseshell-pattern Celluloid, Large Size

【Scale Length】:Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】:17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

1964

Starting in 1964, the material for the pickguard shifted from celluloid to resin.
The thickness also increased by about 1.5 mm, which is believed to have affected not only the appearance but also the sound.
Additionally, the bridge plate became even larger.

~Main Specifications~
[Finish] Cherry Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
[Neck]: Mahogany
【Fingerboard】: Brazilian Rosewood
【Bridge】: Brazilian Rosewood (upper belly) or, very rarely, plastic (upper belly)
【Bridge Plate】: Maple 3-piece (Medium size) or Maple 3-piece (Large size)
【Bracing】:Non-scalloped X-bracing

【Saddle】:Adjustable saddle (glossy ceramic small screws or matte or wood)
[Pegs]: Kluson Deluxe Tuners "Single Line" (with post holes)
[Pickguard]: Tortoiseshell-patterned Celluloid (Large) or Tortoiseshell-patterned Resin (Large)

[Scale Length]: Medium Scale
【Nut Width】:Approx. 43mm
【HEAD ANGLE】: 17°
【Head Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

1965

1965 was a year of major transformation for Gibson as a whole.
The main changes were as follows:

- Switch from Brazilian rosewood to Indian rosewood
- Regular neck with a nut width of approximately 43 mm → Narrow neck with a nut width of approximately 40 mm
- Headstock angle changed from 17 degrees to 14 degrees

In addition, the tuners were switched to Double Line Deluxe tuners,
and chrome-plated bushing hardware began to be used starting this year.

~Main Specifications~
[Finish] Cherry Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Brazilian Rosewood or Indian Rosewood
【Bridge】: Brazilian Rosewood (upper belly) or Indian Rosewood (upper belly)
【Bridge Plate】: Maple, 3-piece (Large Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】:Adjustable saddle (ceramic small screws, matte finish or wood)
【Pegs】: Kluson Deluxe Tuners "Double Line" (with post holes) Nickel Eyelet Bushings or Kluson Deluxe Tuners "Double Line" (with post holes) Chrome Eyelet Bushings
【Pickguard】: Tortoiseshell-pattern Resin, Large Size

【Scale】: Medium Scale
[Nut Width]: Approx. 43mm or Approx. 40mm
【Headstock Angle】: 17 degrees or 14 degrees
【Headstock Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

In 1966

Although the fingerboard and bridge had switched to Indian rosewood,
it appears that wood clearly resembling Brazilian rosewood was often used until around 1969, likely because leftover scraps were still available.
I also get the impression that the plating on the grommet bushings often mixes chrome and nickel.

~Main Specifications~
[Finish] Cherry Sunburst

[Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Indian Rosewood or Brazilian Rosewood
【Bridge】: Indian Rosewood (upper belly) or Brazilian Rosewood (upper belly)
【Bridge Plate】:3-piece Maple (Large Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】:Adjustable saddle (matte ceramic small screws or wood)
【Pegs】: Kluson Deluxe Tuners "Double Line" (with post holes) Nickel Eyelet Bushings or Kluson Deluxe Tuners "Double Line" (with post holes) Chrome Eyelet Bushings
【Pickguard】:Tortoiseshell-pattern Resin, Large Size

【Scale】: Medium scale
[Nut Width]: Approx. 40mm
【Headstock Angle】: 14 degrees
【Headstock Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

1967

Not only does the shade of Cherry Sunburst vary significantly,
but the color variations of the J-45—including Tobacco Sunburst, Ebony Black, Cherry Red, and, very rarely, Brown—
the J-45’s color variations become much more diverse.
The pickguards used for custom colors are white and screw-mounted, and the adjustable saddles are mostly made of wood.
On Cherry Sunburst models, Gotoh tuners are used in very rare cases.


~Main Specifications~
[ Finish] Cherry Sunburst or Tobacco Sunburst or Cherry Red or Ebony Black or Brown

[Top]: Spruce
[Body Sides & Back]: Mahogany
[Neck]: Mahogany
【Fingerboard】: Indian Rosewood or Brazilian Rosewood
【Bridge】: Indian Rosewood (upper belly) or Brazilian Rosewood (upper belly)
【Bridge Plate】:3-piece Maple (Large Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】:Adjustable saddle (wood or, very rarely, small matte ceramic screw)
【Pegs】: Kluson Deluxe Tuners "Double Line" (with post holes) Nickel Eyelet Bushings or Kluson Deluxe Tuners "Double Line" (with post holes) Chrome Eyelet Bushings or Gotoh Pegs
[Pickguard]: Tortoiseshell-patterned resin, large size, or white plastic, large size, screw-mounted

【Scale】: Medium scale
【Nut Width】:Approx. 40mm
【Head Angle】: 14 degrees
【Headstock Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

1968

In 1968, models with the Gibson logo on the pickguard were seen,
instruments with the Gibson logo have also been confirmed on models with serial numbers from 1965, 1967, and 1969.
The Downberry bridge was introduced this year.

~Main Specifications~
[Finish] Tobacco Sunburst or Cherry Red or Ebony Black or Cherry Sunburst or Brown

[Top]: Spruce
[Body Sides & Back]: Mahogany
【Neck】: Mahogany
【Fingerboard】: Indian Rosewood or Brazilian Rosewood
【Bridge】: Indian Rosewood (Upper Berry or Down Berry) or Brazilian Rosewood (Upper Berry or Down Berry)
【Bridge Plate】:3-Piece Maple (Large Size)
【Bracing】:Non-scalloped X-bracing

【Saddle】:Adjustable saddle (wood or, very rarely, small matte ceramic screws)
[Pegs]: Kluson Deluxe Tuners "Double Line" (with post holes) Nickel Eyelet Bushings or Kluson Deluxe Tuners "Double Line" (with post holes) Chrome Eyelet Bushings
【Pickguard】: Tortoiseshell-patterned Resin, Large Size (with or without logo) or White Plastic, Large Size, Screw-on (with or without logo)

[Scale]: Medium Scale
【Nut Width】:Approx. 40mm
【Head Angle】: 14 degrees
【Headstock Taper】: None ( )
【Number of Frets】:20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

1969

By 1969
a J-45 with 1970s specifications—featuring square shoulders, a small pickguard, a long scale, a nut width of approximately 43mm, a straight short saddle, a 3-ply binding with the model name (black/white/black), and a brown (natural finish) headstock—
—a J-45 with 1970s-era specifications—made its debut.
While the bracing pattern has been updated from the previous single-X to a double-X, we are still investigating whether any 1969 serial-numbered models exist with double-X bracing.

~Main Specifications~
[Finish] Tobacco Sunburst or Cherry Sunburst or Custom Color (primarily Ebony Black)

[Top]: Spruce
【Body Sides & Back】: Mahogany
[Neck]: Mahogany
【Fingerboard】: Indian Rosewood or Brazilian Rosewood
【Bridge】: Indian Rosewood (Upper Berry or Down Berry) or Brazilian Rosewood (Upper Berry or Down Berry)
【Bridge Plate】: 3-piece Maple (Large Size) or 1-piece Maple (Extra-Large Size) or 1-piece Rosewood (Extra-Large Size)
【Bracing】: Non-scalloped X-bracing (Single X)

【Saddle】: Adjustable Saddle (Wood), Straight Short Saddle
[Pegs]: Kluson Deluxe Tuners "Double Line" (with post holes) Nickel Eyelet Bushings or Kluson Deluxe Tuners "Double Line" (with post holes) Chrome Eyelet Bushings
[Pickguard]: Tortoiseshell-pattern Resin Large Size (With or Without Logo) or White Plastic Large Size Screw-On (With or Without Logo) or Black Small Size

【Scale Length】: Medium Scale or Long Scale
【Nut Width】: Approx. 40mm or Approx. 43mm
【Head Angle】: 14 degrees
【Headstock Taper】: None ( )
[Number of Frets]: 20

【Logo】Modern
【Soundhole Ring】Double Ring (7-ply + 3-ply)
【Body Binding】Top: 3-ply; Back: Single

 

The legendary "J-45," long beloved as "The Workhorse."
Given its deep history, the wealth of documentation that has been preserved, and the extensive discussions that have taken place, the love that acoustic guitar enthusiasts have for the J-45 is immeasurable.
Compiling this information systematically was no easy task, but through this writing process, I was able to reaffirm the J-45’s appeal.
As mentioned at the beginning, our exploration of the J-45 does not end here.
We aim to continue developing this further alongside the future journey of Advance Guitars.

Inoue, Store Manager, Advance Guitars

Part 1: A History of the Gibson J-45: 1942–

Part 2: 1964–1969: Timeline (This Page)

Advance Guitars

Author: Inoue (Manager, Advance Guitars)

Previously in charge of electric and acoustic guitars at TCGAKKI. Later, in 2023, he participated in the launch of Advance Guitars, a specialty store for acoustic guitars. As store manager, he has experience dealing with collectors and musicians both domestically and internationally. He contributed significantly to the publication of the world’s first SJ reference book, “GIBSON KING OF THE FLAT-TOPS.” He also writes numerous other columns.

A Word from the Author: “ This is one of the articles I’ve poured the most effort and passion into in my writing career. Based on historical data, a vast number of actual instruments, and literature, I was committed to establishing the ‘facts’ as accurately as possible. Even now, when inspecting newly arrived instruments, I use this article as my bible.”

Qualifications & Experience: 8 years as a musical instrument appraiser; contributor and supervisor for publications such as Acoustic Guitar Magazine

▶︎Read the article here

Shin-Okubo’s Martin D-45: Mori
Terry Nakamoto’s Legend: The Four Heavenly Kings ofYamaha
Art Born in the 1800s: The Allure of Antique Guitars
A Trusted Companion: Gibson J-50
“The Workhorse”: Gibson J-45
The Magnificent Square-Shoulder: Gibson Dove
Gibson’s Former Master Luthier “Ren Ferguson
1944 Martin D-18 Owned by Peter Fonda
The Great Train Robbery Special: Martin D-28 TRAIN
MOSSMAN SUPER CUSTOM by Baxendale, Carrying the Spirit of Warner Bros.
The History of the Extremely Rare Gibson Hummingbird

If you found this article helpful, please show your support!