1942 Gibson J-45
The inaugural J-45 — Gibson's workhorse folk guitar. Simple construction, warm tone, and accessible pricing (for its time) made it the guitar of working musicians. Very early examples are rare due to wartime production limits.
Current Market Value
* Prices are estimates based on recent market data. Actual value depends on originality, condition, and provenance. Pricing methodology
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Specifications
| Body Wood | Spruce (top), Mahogany (back and sides) |
| Neck Wood | Mahogany |
| Fingerboard | Rosewood |
| Scale Length | 24.750" |
| Frets | 20 |
| Pickup Config | None (acoustic) |
| Bridge | Rosewood belly-up bridge |
| Tuners | Kluson Deluxe |
| Finish Options | Sunburst |
| Est. Production | 600 |
Pickups & Electronics
No pickup — pure acoustic flat-top.
What Changed in 1942
First full year of the J-45. Introduced in 1942 as a more affordable alternative to the J-200, the J-45 featured spruce top and mahogany back/sides — the now-classic folk guitar combination. Wartime material restrictions began affecting production.
Collector's Notes
Pre-war J-45s (1942-1945) are extremely rare. Look for ladder-braced vs. X-braced tops — early models used ladder bracing. The teardrop pickguard is correct for early models.
How to Authenticate a 1942 Gibson J-45
Gibson serial numbers from this era are ink-stamped on the back of the headstock. Cross-reference with known Gibson serial tables — numbering was not strictly sequential. Potentiometer date codes are critical: look for CTS pots (code 137) with two-digit year codes matching 1942 or up to 18 months earlier. This is the most reliable dating method for Gibson guitars of this era. The finish should be nitrocellulose lacquer showing age-appropriate checking (fine crazing). Under blacklight, original nitro fluoresces a distinctive green-yellow — refinished instruments lack this characteristic. Acoustic — no electric pickups. If a pickup has been added, verify it was not factory-installed (reduces value of vintage examples). Mahogany back/sides, spruce top. Check bracing pattern through soundhole. Verify bridge style and condition. Look for top cracks, bridge lifting, neck angle issues. Original Kluson Deluxe should be present with no evidence of replacement (no oversized bushing holes). Original hardshell case adds provenance value.