Part 1:History of the Gibson J-45: Introduction to the 1942 Model
Part 2: 1964–1969 Chronology (This Page)
The Workhorse
The History of the Gibson J-45
The J-45, passed down through generations
Gibson 1965 J-45 Adjustable Bridge
Based on the serial number engraved on the back of the head, this unit was manufactured in 1965.
The body top's rim-side cherry color has faded, giving it an overall orange hue.
As it continues to fade, it takes on a natural finish, making it nearly indistinguishable from the J-50.
Since there are no structural differences between the J-45 and J-50, they are distinguished by the stamp inside the body. If the stamp has worn off, visual inspection is required.
After seeing many examples, you begin to discern the difference between faded cherry and J-50 natural finishes. This fading is observable from 1963 to 1966. The adjustable bridge features a wood saddle. The wood used is primarily rosewood and ebony.
Additionally, you can see that a black paint finish called a "stinger" is applied to the joint between the neck and body.
This Stinger was originally intended as a decorative element applied to the rear of the heads of higher-end models like the J-200, Super 400, and L-5. However, it was occasionally applied in this manner to conceal processing marks or damage incurred during production.
CurrentlyNewSometimes intentionally included as a custom feature, it's a specification designed to appeal to enthusiasts.
Gibson 1965 J-45 Adjustable Bridge
Based on the serial number engraved on the back of the head, this unit was manufactured in 1965.
This year saw a major specification change in vintage Gibson guitars. The neck, which had a nut width of around 42mm to 43mm, was reduced to approximately 40mm—marking the birth of the so-called "narrow neck." This was a revolutionary event, as the same specification change was implemented not only on acoustic guitars but also on electric guitars.
And this had a significant impact on playability and sound.
Which is "better"—narrow neck or regular neck?
This question has likely been asked countless times before. By now, the view that "narrow necks are unpopular" may be in the minority.
Of course, in the vintage market, the regular neck specification models from before 1965 hold greater value as antiques and are indeed positioned at the higher end of the market.
However, narrow necks have their own unique appeal. For instance, there's playability. For players who frequently use the "Western grip" style—where the thumb presses the root note—a narrow neck is easier to grip and likely offers greater freedom in playing. Singer-songwriter Motohiro Hata uses a 1966 J-45, and he certainly gives the impression of playing in precisely this style.
Additionally, the sound possesses a character unique to narrow-neck guitars. Its sharp, crisp, and clean tone is particularly appealing.A prime example is the 1967 J-45 used by Takuro Yoshida. On the track "Ringo" from his classic album Genki desu., Takuhiko Ishikawa plays Yoshida's J-45, allowing listeners to fully appreciate that crisp, punchy sound. It features percussive low end and a slightly compressed, tight-sounding tone.
That is precisely the charm that only a late 1960s J-45 can offer.
Gibson 1966 J-45 Adjustable Bridge
Based on the serial number engraved on the back of the head, this is a 1966 model.
This is the quintessential '66 look, with a cherry sunburst that has faded beautifully. Alongside the narrow neck, the 14° headstock angle is also characteristic of this period.
This transition also began in 1965.
Another noteworthy feature is the pegs used.
The manufacturer is Goto, a leading Japanese parts maker. While commonly seen on 1967 J-45s and small-body guitars, it is extremely rare to find it used on a 1966 model.
This unit has been replaced with a knob that is thicker and more rounded than usual for its age,
The original also used Goto-brand pegs.
Gibson 1966 J-45 Adjustable Bridge
Cherry Red "BGN" Stamped
Based on the serial number engraved on the back of the head, this is a 1966 model.
The distinctive feature is its cherry red color, not the sambar burst finish on the body top. The first question that comes to mind is why it has a 1966 serial date and a cherry color. Generally, acoustic custom colors (primarily cherry red and ebony black) have serial dates from 1967 to 1969. The key to this question is the "BGN" stamp found on the back of the headstock.
This stamp was not added later by the owner; we believe it was applied at the Gibson factory. "BGN" is one of the identification marks stamped on the back of the headstock at the Gibson factory, standing for "Bargain." This indicates the guitar was sold to employees at a significantly discounted price and is said to be an instrument that did not enter the general market. Therefore, we believe this particular instrument had issues for general distribution and was sold to employees in Cherry Red.
Regarding Gibson Acoustic's custom colors, why they were created and the circumstances surrounding their development,
We were unable to confirm any official records indicating this, so the details remain unknown. Regarding custom colors for electric guitars, they were adopted with the Firebird model introduced in 1963, and a color chart existed allowing users to select their preferred color.
The features of the acoustic custom color are as follows:
- Commonly seen from 1967 to 1969
- Many items bear the second-hand stamp
- Some units have a four-piece body top
-B-25 and LG-1 small-body models, as well as models like the Epiphone FT, also feature
- Brown and other rare colors also exist
Given these circumstances, the most plausible explanation at present is that units which could not be shipped as standard products under normal criteria were made saleable by altering their finish impression through painting. In other words, it is thought that custom colors were utilized with the aim of reducing factory yield (waste).
Gibson 1967 J-45 Adjustable Bridge
Based on the serial number engraved on the back of the head, this unit was manufactured in 1967.
From this year onward, the appearance of the Cherry Samba Burst color changes. The red on the rim is a brighter shade, and it does not fade as much over time as examples up to 1966.
At this point, fading of the cherry sunburst finish had already become a concern, and one can imagine the scene where the paint was changed to prevent the color from fading.
The pegs are Gotoh. The bushings are chrome (replaced with nickel on the 4th string only).
Gibson 1967 J-45 Adjustable Bridge
Based on the serial number engraved on the back of the head, this unit was manufactured in 1967.
The sunburst coloring is very striking. Starting this year, brown-based sunburst colors will make a comeback.
Compared to the early 1960s, it differs in that the rim area exhibits a reddish tint when faded.
It closely resembles the J-45 used by Takuro Yoshida.
The individual appears to have used various saddles, including ceramic saddles, fixed saddles, and wooden saddles.
Gibson 1968 J-45 Adjustable Bridge
The serial date is 1970, but based on specifications like the Gibson logo design on the pickguard and the coloring, this particular instrument is judged to be a 1968 model. It offers a completely different impression from the tobacco sunburst mentioned earlier, with the black color on the rim side remaining solid.Upon inspecting the back of the headstock, a second stamp was found, leading us to believe the finish was reworked at the factory. The paint texture is slightly thicker, and signs of the neck being refinished are visible.
That said, it's undeniably in excellent condition, serving as a textbook example of vintage craftsmanship that lets you imagine what a tobacco sunburst J-45 from that era must have looked like.
Regarding the Gibson logo on the pickguard, like the custom color, the details such as its background are unknown.
This design appears on the back cover of the 1966 catalog. While some suggest it depicts fingers pressing down on frets, I personally think the interpretation that it represents a 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 Adjustable Bridge
Ebony Black
Based on the Gibson logo design on the pickguard, the coloring, and the bridge specifications, this instrument was determined to be a 1968 model.
Ebony Black features striking jet-black coloring and yellow-tinged plastic accents.
Upon closer inspection, you can see that this specimen has a body composed of four pieces.
Sunburst or natural finishes tend to stand out, but jet black definitely doesn't.
Gibson 1968 J-45 Adjustable Bridge
Cherry Red
Based on specifications such as the serial number and bridge, this instrument is determined to be manufactured in 1968.
This individual also has a four-piece body top. The cherry red has faded over time, resulting in a lighter, "cherry blossom"-like color.
It's not uncommon to find items with this kind of fading. It's a look unique to vintage pieces.
The pickguard is a screw-on white model without the Gibson logo. Originally, the screws were also coated in white paint, but this coating has peeled off, exposing the metal.
Gibson 1968 J-45 Adjustable Bridge
Ebony Black
Based on the serial number engraved on the back of the head, this unit was manufactured in 1968.
A stately ebony color. The pickguard is a screw-on white model without the Gibson logo. The texture, yellowed with age, is simply irresistible.
The bindings have also aged beautifully, making this yellow and black combination truly stunning.
This is the very essence of vintage ebony black.
The bridge is down-bow. This specification becomes visible starting from the 1968 serial date.
And this 1968 Downberry Bridge J-45 Ebony Black is the same model as the "No. 1" guitar Kazuyoshi Saito uses as his main instrument. He removes the saddle screws and uses it with the saddle flush against the body.
Gibson 1969 J-45 Adjustable Bridge
Based on the serial number engraved on the back of the head, this unit was manufactured in 1969.
Structural features include the down-bow bridge introduced in 1968, a 43mm nut width, an enlarged bridge plate, and an L-shaped neck block—specifications characteristic of the transitional period leading into the 1970s.
The bridge plate is made of rosewood. Maple is sometimes used for this size, so the wood used may vary by individual piece.
Even so, the size is large. Such structural changes can also be seen in Martin guitars from the same period.
Martin changed the bridge plate material from maple to rosewood in 1968, and in 1969, its size was also increased.
These trends suggest that manufacturers across the board were pursuing structural reforms prioritizing strength in acoustic guitars, and the J-45's design strongly reflects this prevailing trend.
Chronology
(1942–1969)
※This is statistical data and is provided for reference purposes only.
If you have encountered or possess any irregular or special specifications, please provide information to the email address below.
Email address:aco@tcgakki.com
Advance Guitars Attn: Inoue
1940s
1950s
1960s
The legendary J-45, beloved for years as the "Workhorse."
Given its profound history, the wealth of documentation preserved, and the extensive discussions that have taken place, the affection that acoustic guitar enthusiasts hold for the J-45 is immeasurable.
Systematically compiling this information anew was no simple task, but through this writing process, I was able to reaffirm the appeal of the J-45.
As mentioned at the outset, the exploration of the J-45 is not over yet.
We will continue to strive for further growth alongside the future development of Advance Guitars.
Advance Guitars Manager Inoue
Part 1:History of the Gibson J-45: Introduction to the 1942 Model
Part 2: 1964–1969 Chronology (This Page)
Advance Guitars
Written by:Inoue (Manager, Advance Guitars)
TCGAKKIHe played electric and acoustic guitars. Later, in 2023, he participated in launching Advance Guitars, a specialty shop for acoustic guitars. As store manager, he gained experience dealing with collectors and musicians both domestically and internationally. He contributed significantly to publishing the world's first SJ reference book, "GIBSON KING OF THE FLAT-TOPS." He also writes numerous columns.
One word: This is one of the articles I've poured the most effort and soul into writing. Based on historical data, extensive hands-on experience with actual units, and literature, I was determined to build up the facts as much as possible. Even now, when inspecting newly arrived units, I still refer to this very article as my bible.
Qualifications and Experience: 8 years as an instrument appraiser, contributing articles and providing editorial support for Acoustic Guitar Magazine and other publications
▶︎Articles I've written can be found here
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My Trusty Companion Gibson J-50
The Workhorse Gibson J-45
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Peter Fonda's 1944 Martin D-18
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