"It is bound to be the talk of any night club, tavern or stringed group"
Israel Crosby was pictured with a Bassoguitar in the November 1936 issue of Modern Mechanix.
Buster Bailey, Big Sid Catlett, Joe Thomas, Israel Crosby, Fletcher Henderson, Joe Lessey, and Chu Berry.
1939 Oahu catalog. Regal made some of the guitars sold under this brand name.
1937-38 Montgomery Ward catalog. Regal also sold guitars via this retailer.
The Bassoguitar in this 1939 ad features the rounded body shape and the description no longer mentions the fretless fingerboard.
Regal Bassoguitar Basso-Guitar Basso Guitar