[Dave Dolson]

I'm thinking 1920's stencil. Photos? At least write down the engravings on the back and report them here (serial, patent date if any, letters like "A" and "L", etc. DAVE

 

[Dave Dolson]

Probably made by by C.G. Conn. The "A" means alto, the "L" means Low Pitch (a good thing . . . note A equals 440, modern tuning),

The presence of patent info suggests Conn, although I don't know if Martin has similar info. It wasn't uncommon for large instrument retailers to commission a run of Conn -made or Buescher-made saxophones with their own retail name on them. Same thing is done today with Taiwanese instruments. DAVE