1948 C.F. Martin & Co. D-18

A late 1940s D-18 — the post-war country music boom era. The punchy mahogany tone became the sound of honky-tonk and early Nashville recording sessions.

Current Market Value

Excellent
$7,000$14,000
Very Good
$4,500$7,000
Good
$2,700$4,500
Fair
$1,350$2,700

* Prices are estimates based on recent market data. Actual value depends on originality, condition, and provenance. Pricing methodology

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Specifications

Body WoodSpruce (top), Mahogany (back and sides — post-war, non-scalloped bracing)
Neck WoodMahogany
FingerboardEbony
Scale Length25.400"
Frets20
Pickup ConfigNone (acoustic)
BridgeEbony belly bridge
TunersGrover Sta-Tite
Finish OptionsNatural
Est. Production820

Pickups & Electronics

Pure acoustic flat-top.

What Changed in 1948

Post-war D-18 production growing. Non-scalloped bracing standard. Simplified binding. Ebony fingerboard and bridge. The post-war country music boom was driving demand for affordable Martin dreadnoughts.

Collector's Notes

Late 1940s D-18s are excellent player instruments. Ebony fingerboard and bridge still standard. The country music association makes these culturally significant.

How to Authenticate a 1948 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 1948, the number should fall within the documented range. Mahogany back and sides with spruce top. Non-scalloped X-bracing pattern for this era — verify through the soundhole. Mahogany (not rosewood) back and sides — verify correct wood species. Simpler appointments than D-28 (no herringbone). 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.