I picked one of those up last year new in box, wrapped in news print from 1955. It was labeled Silver King. The guy I got it from found 8 of these in a basement all new in boxes, never opened. He also found 6-8 duck hunt penny gum machines some new in box and some assembled with the gumballs, but never put into use: also made by Silver King!
"Found in basement." I love those stories.