SOLD: Kay Double Bass 1940 RARE Model 89


Hello! Thank you for viewing one of our SOLD double bass listings!  This instrument is no longer for sale, but check out what’s currently available in our list of Vintage and Used Double Basses. Upton Bass is also the proud builder of new custom upright basses at every price point. We want to help you find the perfect bass!  Contact us at or call the shop at +1 (860) 535-9399

1940 Kay Double Bass

This one is in rock solid condition. New bridge and endpin on it, fingerboard is getting a little thin, but it plays well. 77 YEARS YOUNG. We think it’s a steal at this price!


Kay Double Bass 1940

Another classic American plywood upright bass. Great shape, classic sunburst.

Could use another plank someday, but plays great and solid as is. What a classic!  Gamba cornered rare Kay bass. Clearly has been cared for over generations.


“Kay bass model 89…they appear to have been  manufactured between 1939 and 1945. Probably less than 50 were manufactured. I don’t have any info on the bass, other than it is the Concert (C-1) model. It is suspected that the model 89’s were sold by Sears, Spiegels, Montgomery Ward and other mail order companies.”

Upton Bass String Instrument Co. specializes in building award-winning custom double basses and offers accessories for the double bass. Upton Bass also services all instruments and bows of the violin family with world class restoration and repair, to view our online restoration portfolio visit

Upton Bass is ready to offer advice and answer any questions regarding double basses or related bass topics. Please contact UB at or call the shop at +1 (860) 535-9399. Hours of operation Tuesday through Saturday 10am – 6pm. The Workshop (The Barn) and showroom are located in Mystic, Connecticut conveniently between Boston and NYC.