Here is a wonderful piece - a C. F. Martin Style 2-K Koa soprano ukulele built during the later 1920s or possibly very early 1930s.

Before the start of the First World War, the C. F. Martin company was trying to build ukuleles, but the first production models didn't appear until 1916. In 1920, Koa wood became available for ukes and the model 2-K appeared.

While this example does not carry a serial number, we know that because it's Koa it can't be before 1920; it also has nickel-plated Patent tuners, which appeared in 1923. The C. F. Martin logo is stamped on the back of the headstock, which changed to a decal in 1932, and until 1934 bar frets were used. We are dating it to the late 1920s, but it could have been built as late as early 1932.

This is a very nice instrument in good condition for its age. The body is entirely Koa, with a mahogany neck and Brazilian Rosewood fingerboard. The bridge is Koa with a wooden saddle insert, possibly also Brazilian Rosewood. The bar frets have very little wear, and a period correct trap-door case is included.

This is a consignment piece. Prices shown are in US dollars. For Canadian dollar pricing, please follow the More Details link here to our webstite posting at

The Twelfth Fret

The Twelfth Fret

C. F. Martin
Natural Koa
The Twelfth Fret
The Twelfth Fret
(416) 423-2132
Toronto, Ontario
4:58 PM
12-6 Monday to Thursday 12-7 Friday 11-5 Saturdays Closed Sundays

1. We accept Visa and Mastercard through our secure online payment processor. We do use 3d Secure, aka Verified by Visa and Mastercard Secure Code. If the card cannot be verified through this method, shipping delays may occur. 2. We accept wire transfers - please contact us for details. 3. We do not accept cheques. Our banks hold cheques far too long for this to be useful. 4. In person we're happy to accept cash or verified debit cards. 5. Normally, on our own website ( we list prices primarily in Canadian dollars. On Gbase, we've converted the Canadian prices to US dollars at a 1.3% exchange rate. This rate is subject to change, reflecting current currency conversion rates.

Our primary carrier is FedEx. We also use Canada Post where rates or delivery schedules may provide better service to our customers. While we try hard to ship promptly, we will hold shipments if we determine that weather issues may cause damage to the shipped item.

Returns of Guitars, mandolins, banjos, amplifiers etc. All sales are final. We have a no-returns policy with a number of exceptions. To view our full return policy, and Terms and Conditions, please see the page at the link below: