1970 C.F. Martin & Co. D-28
The first Indian rosewood D-28 — a different instrument from the Brazilian-era models. Still excellent acoustic guitars, and Indian rosewood has its own vocal, bright tonal character. More affordable than pre-1970 examples.
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), Indian Rosewood (back and sides — Brazilian rosewood discontinued) |
| Neck Wood | Mahogany |
| Fingerboard | Rosewood (Indian) |
| Scale Length | 25.400" |
| Frets | 20 |
| Pickup Config | None (acoustic) |
| Bridge | Rosewood belly bridge |
| Tuners | Grover Sta-Tite |
| Finish Options | Natural |
| Est. Production | 7,200 |
Pickups & Electronics
Pure acoustic.
What Changed in 1970
Indian rosewood replaced Brazilian rosewood across Martin's line from 1970 — the most significant tonal and materials change since the scalloped bracing removal in 1947. Indian rosewood is different in color and tonal character from Brazilian.
Collector's Notes
Indian rosewood is readily identifiable by its straighter grain and lighter color (brown vs dark chocolate-purple of Brazilian). These are excellent player instruments at very accessible prices.
How to Authenticate a 1970 C.F. Martin & Co. D-28
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 1970, the number should fall within the documented range. Indian rosewood back and sides — verify correct grain and coloring. Non-scalloped X-bracing pattern for this era — verify through the soundhole. Check bridge for original belly-style construction. Martin stamps the model number inside — verify with a mirror. 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.