SOLD: Mittenwald Double Bass, Flatback Pre WWI

A fine Mittenwald Double Bass, no label, very early 20th Century. Beautiful vintage details and old-stock wood, flatback with lots of projection and a joy to play. 


A fine Mittenwald Double Bass, no label, very early 20th Century. Expertly restored scroll with newer hat-peg tuners. Our resident bass tester and educator fell in love right away: “This bass easily makes the list for ‘Bryan’s Choice’ if there were such a thing.”

“This is a gigging jazz musician’s bass all the way! It has plenty of snarl, growl and sustain and plays fast and effortlessly. The restoration work is beautiful and makes this instrument solid as a rock and ready to go to gig after gig right here in the New England weather. There were some very smart choices made to bring the string length down from 43” to 42 such as the T-nut and the shaping of the bridge. And I love the recessed plates on the tuners.”

Can be set up for any style of music you play,  It’s only because this bass has no label that the price is where it is. Ready for the next century of low notes!


  • Upper Bout: 21″
  • C Bout: 14.5″
  • Lower Bout: 25.25″
  • Rib Depth: 7 – 8.25″
  • Length of Body: 43″
  • String Length: 42″
  • Neck: D (+-)
  • Weight: 20.7 pounds

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.

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