From the list of supporting cast and their photos, this appears to be circa 1939. Some characters shown on it were introduced in that year, while others who were introduced later in the run of the program are not pictured in the cast photo. The radio program aired from 1935 to 1959.
The dating makes the item well within the pre-1978 timeframe.
United States Copyright Office page 2 "Visually Perceptible Copies The notice for visually perceptible copies should contain all three elements described below. They should appear together or in close proximity on the copies.
2 The year of first publication. If the work is a derivative work or a compilation incorporating previously published material, the year date of first publication of the derivative work or compilation is sufficient. Examples of derivative works are translations or dramatizations; an example of a compilation is an anthology. The year may be omitted when a pictorial, graphic, or sculptural work, with accompanying textual matter, if any, is reproduced in or on greeting cards, postcards, stationery, jewelry, dolls, toys, or useful articles.
Este trabalho está em domínio público porque foi publicado nos Estados Unidos entre 1929 e 1977, inclusive, sem um aviso de direitos autorais. A menos que seu autor esteja morto por vários anos, não é do domínio público nos países ou áreas que não se aplica a regra do curto prazo para as obras dos E.U.A, como o Canadá (50 apm), China (50 apm, com exceção de Hong Kong e Macau), Alemanha (70 apm), México (100 apm), Suíça (70 apm), e de outros países com tratados individuais. Veja esta página para mais explicações.
{{Information |Description=Photo of Isobel Randolph from the radio show ''Fibber McGee and Molly''. Randolph played Mrs. Uppington on the radio program. |Source=[http://www.ebay.com/itm/fiber-Mcgee-Molly-W-Cast-Photo-Radio-NBC-Book-/360259176094?pt=LH...
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