RCA Prototype

This is an unusual speaker which John Volkmann of RCA created for a world's fair. Dad can't remember what year but it was in New York which would point to either 1939 or 1964.  Dad (Hans Dietze) worked with Volkmann and after his death he and I went to clean out Volkmann's basement.  Talk about p...

This is an unusual speaker which John Volkmann of RCA created for a world's f...