The most well-known example started in 1934 with the Ovaltine company's sponsored radio program "Little Orphan Annie". The show's fan club, "Radio Orphan Annie's Secret Society", distributed a member's handbook that included a simple substitution cipher with a resulting numeric cipher text. This was followed the next year with a membership pin that included a cipher disk - enciphering the letters A-Z to numbers 1-26. From 1935 to 1940, metal decoders were produced for the promotion. From 1941 on, paper decoders were produced. Similar metal badges and pocket decoders continued with the "Captain Midnight" radio and television programs.