1932 C.F. Martin & Co. D-18
The first D-18 — Martin's inaugural mahogany dreadnought. Only 45 made. Scalloped bracing, Adirondack spruce, and the punchy mahogany tone that would define bluegrass and country flat-picking.
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 — scalloped bracing) |
| Neck Wood | Mahogany |
| Fingerboard | Ebony |
| Scale Length | 25.400" |
| Frets | 20 |
| Pickup Config | None (acoustic) |
| Bridge | Ebony belly bridge |
| Tuners | Grover Sta-Tite |
| Finish Options | Natural |
| Est. Production | 45 |
Pickups & Electronics
Pure acoustic flat-top.
What Changed in 1932
First year of the D-18 — Martin's mahogany dreadnought. Scalloped bracing, Adirondack spruce top, mahogany back and sides, ebony fingerboard. The affordable dreadnought that would become a bluegrass and country staple.
Collector's Notes
First-year D-18s are rare and significant. The mahogany construction gives a different tonal character from the rosewood D-28 — more focused midrange, drier bass. Verify scalloped bracing inside.
How to Authenticate a 1932 C.F. Martin & Co. D-18
Martin serial numbers are the most reliable in the industry — verify the number stamped on the neck block (visible through the soundhole) against Martin's published tables. For 1932, the number should fall within the documented range. Mahogany back and sides with spruce top. Scalloped bracing should be visible through the soundhole (use mirror or inspection camera) — this is critical for pre-1944 models. Mahogany (not rosewood) back and sides — verify correct wood species. Simpler appointments than D-28 (no herringbone). Pre-war scalloped bracing makes these highly sought-after. Check for neck resets, top cracks (especially near soundhole and bridge), and bridge plate condition. Tuners should be Grover Sta-Tite. Finish should be nitrocellulose lacquer with age-appropriate wear. Original case adds value.