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Happy Tuba Tuesday. Today, the Museum features a Martin, mammoth Handcraft, BB flat sousaphone, 4 piston, c.1923.

Serial #: 42505

Bell Diameter 26”, Bore Size .715”.

Comments:

“MARTIN / HANDCRAFT / ELKHART / IND.” on bell. Ornate floral engraving on bell around identification marks.



https://simonettitubacollection.com/ins ... ousaphone/

Interesting that the bore sends a bit small for that size horn. 20K's have a 0.734” bore.