-40%
SIGMA DR-7 BY C.F. MARTIN Dreadnought Acoustic VINTAGE Rosewood Spruce top
$ 184.78
- Description
- Size Guide
Description
GUITAR HAS THE SIGMA MOP DESIGN. DECAL LOOKS TO BE DAMAGED.In 1970, guitar maker
Martin
created a line of inexpensive guitars to compete with the increasing number of imported guitars from Japan and elsewhere. Initial construction was in Japan, and those from 1970 to approximately 1978 were of solid high grade tonewood (top, sides and back) but from then onwards changed to laminated construction for the back and sides. The first Sigma's were dreadnought acoustics, DR-1 through DR-7 (D for dreadnought and R for rosewood and the number denoting the grade, 7 being the top grade instrument). Some GCR-6 triple 000 and OM Series were built in Japan also. Sigma built the GCS (Grand Concert Series) to Martin's 000 body specifications. There were also classical guitars in the C (Classical) series. Construction moved from Japan (1970 - 83), to Korea (1984 - 93/94), to Taiwan (1993 - 2007). In 1980, the model lines and designations were changed to capitalize on Martin model names: the DM-18, DM-19, DR-28, DR-28H, DR-35, DR-41, DR-45, but the older model types were also continued as well.
Sigma guitars made in Japan from 1970 through 1979 can be distinguished by a headstock logo consisting of the single word "SIGMA" surmounted with Martins ("sideways M") logo in mother of pearl above it and an inner paper label giving model and serial numbers. Some guitars in some years however, particularly the classical range, will not have the headstock logo, but all had the inner label. In 1980 the paper labels were discontinued and the back brace was stamped. With the move of production to Korea in 1984 the paper labels were reinstated but of a different design.
Some very early DR-7 and DM-5 batches had what collectors call an interior “type zero” white label with a black border and the Gen I logo printed with “Produced and distributed by C.F. Martin & Co., Nazareth, Pennsylvania, USA.” The model designation was usually hand-written in ink along the bottom border.
By late ’72, the zero fret was being phased out and the saddle made non-adjustable, but still perched on