This kinda explains something I'd noticed - in the circulating episode, the credits refer to the show as "Pay Cards! Orange Series" with no context given. This card, meanwhile, specifically says it's only good during the "Red Series" of shows.
The former was taped in April 1969 whereas the latter has a 1968 copyright, which indicates the show was produced in blocks of "color series". The card also suggests the dollar sign in the logo was actually part of the show's name.
