Hans J. Bach (Vincent’s brother) helped with Vincent’s early business, and also owned and operated a music store for more than 30 years at 128 West 47th Street, New York City, NY at the same time Vincent was making instruments through the 1930-1950′s.
Other stencil musical instruments such as saxophones, trumpets, and trombones exist.
This is an early example of a Trombone case by Hans Bach.
Additional references include the reference to “Bach – Hansart Instruments” company.
Another reference – Inventor
Hans J Bach company of New York was granted a patent for a wind instrument hand protector. Patent linked below. This was the only patent by Hans J. Bach.
patent number: 1,481,855
filed: December 28, 1922
issued: January 29, 1924
WANTED: