The Sigma DM-18+ was introduced around 1978 when Sigma was the Japanese budget line of Martin guitars. The Sigma model names were chosen to match with Martin model numbers: the solid spruce topped Sigma DM-18 was closely modelled on the Martin D-18 dreadnought.The guitar has some slight blemishes on the lacquer of the neck. Purely cosmetic.
Sigma Guitars DM-18+ Features:
- Body Size: D-14 Fret
- Construction: Dovetail Neck Joint
- Top: Solid Sitka Spruce
- Back & Sides: Mahogany
- Neck: Mahogany, Low Profile
- Nut & Saddle: Bone
- Fingerboard: Micarta
- Scale Length: 25.4 (645 mm)
- Neck width at nut: 1-3/4 (44,5 mm)
- Tuning Machines: Grover Nickel Open-Gear w/ Butterbean knobs
- Finish: Aging Toner
- Strings: D´Addario EXP16

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