Date: 1967. Owner unknown

The 50H Director is a student model bass trombone. The 0.522" bore makes it a #3 3/4. It was produced from 1965 through at least 1973.

What Conn said in 1966:
Outstanding bass trombone designed especially for students. Acoustically superior. F rotor attachment. Bore size .522". Bell 8 1/2". Length 46 1/4".