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desc_issuer: United States desc_year: 1941 desc_denom: 20c Related descs: issuer=United States-1940-10c issuer=United States-1942-3c Not used by any overprinted stamps. Used by 1 (0 visible) image: See images as array Matches 1 type: United States airmail 8/27/1941 20c brtgrn issue=1941 air d=twin-motor transport plane unwmk perf=11x10.5 |