No date or details on this recording.  Very likely from about 1960.

Peterson experimental organ

George Wright Demonstrates the Peterson Experimental Organ

Student and Protege of Stan Kann 1956.  Became assistant to Stan at the St Louis Fox.   Designed and built major arena sound system for major artists in the 70's including the Grateful Dead and the Who.  The only manufacturer and probably the only theater organist in the Rock n Roll  Hall of Fame. Check WikiPedia.  Still enjoy  playing the great Wurlitzers in concert today.

George Wright Demonstrates the Peterson Experimental Organ

Lew Williams 1