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desc_issuer: Liberia desc_year: 1938 desc_denom: 20c Related descs: issuer=Liberia-1937-1c Used by 1 overprinted stamp: Liberia airmail 2/3/1941 50c issue=First Flight Liberia - U.S. d=Sikorsky Amphibian on=1938-20c unwmk Not used by any images. Matches 1 type: Liberia airmail 9/12/1938 20c issue=1938 air d=Sikorsky Amphibian unwmk |