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. 1833MarkingsBranded on neck block: D 12-28 / 303551DescriptionStringing: 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 boutsDimensionsTotal 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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