Conn 1907 Unknown model Top Action 3 valve bell front Eb Bass

Conn Unknown model Top Action 4 valve Eb Bass 1918

Date: 1907. Owned by Ken Norman

This is a 1907, three valve top action bell front Eb Bass. Judging by the screw on the bell it is removable. I haven't been able to find any documentation regarding this bass, however catalogs for the period before 1919 are scarce.