Decoders given away as premiums

For a picture click on the desired link:

Radio Orphan Annie decoders
1935 Radio Orphan Annie Decoder (Front/Back)
1936 Radio Orphan Annie Decoder - (Front)
1936 Radio Orphan Annie Decoder - (Back)
1937 Radio Orphan Annie Decoder - (Front/back)
1938 Radio Orphan Annie Decoder - (Front/back)
1939 Radio Orphan Annie Decoder - (Front/back)
1940 Radio Orphan Annie Decoder - (Front/back)

Captain Midnight decoders
1941 Captain Midnight Decoder - (Front)
1941 Captain Midnight Decoder - (Back)
1941 Captain Midnight Klutz Press Repro (Front/Back)
1942 Captain Midnight Decoder - (Front/Back) - Courtesy Stephen Kallis Jr.
No Captain Midnight decoders were produced in 1943 or 1944
1945 Captain Midnight Decoder - (Front) - Courtesy Stephen Kallis Jr.
1946 Captain Midnight Decoder - (Front/Back)
1947 Captain Midnight Decoder - (Front)
1947 Captain Midnight Decoder - (Back)
1948 Captain Midnight Decoder - (Front) - Courtesy Stephen Kallis Jr.
1948 Captain Midnight Decoder - (Back) - Courtesy Stephen Kallis Jr.
1949 Captain Midnight Decoder - (Front/Back)
Plastic Captain Midnight decoder jets were produced twice during the 1950s.

Tom Mix "decoder" buttons
Tom Mix - Tony (Front)
Tom Mix - Tony (Back)

Cardboard decoders
Caesar Cipher