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All the way back in 1921 Martin made only one 000-28K. They never made this guitar in their production line again! The other all Koa models they made in the twenties are highly desirable but the 1921 000-28K has always alluded collectors and musicians! This slotted head 12-fret is a completely faithful recreation of the original, featuring flamed Hawaiian koa top, back and sides, hide glue construction and a hand shaped neck.
Here are some spec:

Model: 000-28K Authentic 1921
Construction: Mahogany Blocks/Dovetail Neck Joint - Hide Glue
Body Size: 000-12 Fret
Top: Solid Highly Figured Koa
Rosette: Style 28 (Authentic 1921)
Top Bracing Pattern: Standard ''X'' Scalloped (Authentic Style) - Circa 1921
Top Braces: Solid Adirondack Spruce 1/4''
Back Material: Solid Highly Figured Koa
Back Purfling: 28 Style Zig Zag (Authentic)
Side Material: Solid Highly Figured Koa
Endpiece: Grained Ivoroid in a Narrow 1921 Shape
Endpiece Inlay: Black/Maple/Black Fiber
Binding: Grained Ivoroid
Top Inlay Style: Fine Herringbone (Authentic Style)
Side Inlay: none
Back Inlay: Black/Maple/Black Fiber
Neck Material: Solid Genuine Mahogany
Neck Shape: Authentic 1921 Barrel & Heel - No Truss Rod
Nut Material: Bone
Headstock: Slotted/Square Slots/Diamond/1921 Taper
Headplate: Solid Madagascar Rosewood
Heelcap: Grained Ivoroid
Fingerboard Material: Solid Black Ebony
Scale Length: 25.4''
Number Of Frets Clear: 12
Number Of Frets Total: 20
Fingerboard Width At Nut: 1-7/8''
Fingerboard Width At 12th Fret: 2-5/16''
Fingerboard Position Inlays: Diamonds & Squares - Short Pattern Golden Era
Fingerboard Binding: none
Finish Back & Sides: Polished Gloss w/Aging Toner
Finish Top: Polished Gloss w/Aging Toner
Finish Neck: Polished Gloss w/Aging Toner
Bridge Material: Solid Black Ebony
Bridge Style: Authentic Style Pyramid w/Long Saddle
Bridge String Spacing: 2-3/8''
Saddle: 16'' Radius/Long Bone
Tuning Machines: Stew Mac Golden Age Bright Nickel 2515 Side Mounts w/Ivoroid Knobs
Recommended Strings: Martin M535 Phosphor Bronze (Custom Light)
Bridge & End Pins: Ivory Colored Poly w/Tortoise Colored Dots
Pickguard: Delmar Tortoise Color
Case: 535V Harptone

Retail Price: $7,499.00

Year Condition Color Case
2014 (1921 reissue) Brand New Natural Hard


The Guitar Shoppe
James Dean Matthews
Laguna Beach, CA
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