SOLD: Kay M1B Double Bass Viol, c1950


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 also builds new custom upright basses at every price point. We can help you find the perfect bass! Email  or call the shop at +1 (860) 535-9399

Blonde Kay M1B double bass from 1950 – healthy and remarkably original. S/N M1B23105 


Kay M1B Double Bass Viol, c1950

This top-of-the line blonde Kay bass has been played a lot, but has been well taken care of! Pretty rare we see a 70-year-old Kay that hasn’t suffered a neck break or repair. Check out the clean neck heel and button. Comes with Fishman Full Circle, currently set up for roots music – as always, we can tweak to your liking here at the shop.

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! If you are interested in this Kay M1B double bass viol, please contact UB at or call the shop at +1 (860) 535-9399.

Hours of operation Tuesday through Saturday 10 am – 6 pm. The Workshop (The Barn) and showroom are located in Mystic, Connecticut conveniently between Boston and NYC.





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