12-string guitar

Alternate name(s)

Guitar

Date1971

Place MadeNazareth, Pennsylvania, United States, North America

ModelD 12-28

Serial No.303551

SignedBranded on back graft: [lettering curved downward at each end] C.F.MARTIN & Co / ―∙― / NAZARETH, PA. / MADE IN U.S.A.
Gold and black decal on head: [lettering curved downward at each end] CFMartin&Co. [sic] / EST. 1833
MarkingsBranded on neck block: D 12-28 / 303551
DescriptionStringing: twelve steel strings in six courses
Soundboard: two-piece Sitka spruce, medium to wide grain broadening to wide grain
Back: two-piece book-matched rosewood; back stripe of light and dyed black wood in a “checkered” marquetry pattern
Ribs: two-piece rosewood divided by a ivory celluloid end graft strip with a thin black/ivory border of celluloid purfling (slightly wider toward top than bottom)
Head: mahogany veneered with rosewood on front face
Neck: mahogany
Heel cap: ivory celluloid
Binding: ivory celluloid with 4-ply ivory, black, ivory, black celluloid purfling trim
Fingerboard: ebony; 20 nickel-silver frets; single mother of pearl dots behind 5th, 9th, 15th and 17th frets; two mother of pearl dots behind the 7th and 12th frets; ivory celluloid side dots behind 3rd, 5th, 7th, 9th, 12th, 15th, and 17th frets
Nut: White Plexiglass [see page 40 of Martin Guitars, A Technical Reference, Johnston, Boak and Longworth]
Bridge: Ebony with curved lower edge; angled, cream Micarta saddle; white bridge pins with a black dot in the center.
Pegs: six on a side, chrome-plated steel enclosed tuners by Grover with oval head surfaces and a rectangular plate outline
Endpin: white plastic with a black dot
Rosette: wide band of 9-ply ivory and black celluloid strips, surrounded on each side with another, thinner band of 5-ply black and ivory alternating strips, with natural wood in between
Pick guard: black acetate
Varnish: clear gloss nitrocellulose lacquer
Linings: kerfed mahogany
Neck block: mahogany; chamfered corners
End block: mahogany; chamfered corners
Top braces: spruce X-brace [no scalloping], the joint of main cross brace reinforced with off-white canvas; maple bridge plate
Back braces: spruce back graft; four spruce back braces, the two braces in the lower bouts with rounded edges, and wider and lower in height than the two braces in the upper bouts
DimensionsTotal guitar length: 1052 mm (41-3/8″)
Back length: 510 mm (20-3/32″)
Upper bout width: 293 mm (11-9/16″)
Waist width: 278 mm (10-15/16″)
Lower bout width: 400 mm (15-3/4″)
Rib height (including edging) at heel: 101 mm (3-15/16″)
Rib height, at waist: 114 mm (4-7/16″)
Rib height, at end block: 126 mm (4-29/32″)
Head length: 192 mm (7-17/32″)
Head width, top: 73 mm (2-13/16″)
Head width, bottom: 62 mm (2-7/16″)
Neck length (nut to ribs): 356 mm (13–13/16″)
Neck width, nut: 47 mm (1-7/8″)
Neck width, heel: 60 mm (2-5/16″)
Soundhole diameter: 101 mm (4″)
Vibrating string length (nut to saddle edge): high E: 630 mm (24-13/16″); low E: 634 mm (25″)

Credit LineGift of Harris Haynes Estate, 2012

Object number14646

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