Well, first off this is not a Conn saxophone. It looks like a Martin stencil according to the keywork. Although, the table mechanism may have been rebuilt at Conn. It was probably an old horn that was restored at the C.G. Conn repair school in the 1940s-1950s and then restamped with the CG Conn name. You can see from the engraving that, the original engraving is buffed over and the horn has been replacered. But the CG Conn stamping is newer, over the top of the old engraving. An interesting horn from a historical perspective, but not one worth putting any money into. It has antiquated keywork and would most likely play fairly poorly in the tuning department. Best of Luck!!

Cheers,
     Mark Overton
     www.saxquest.com