desc_issuer: United States desc_year: 1937 desc_denom: 50c Related descs: issuer=United States-1936-3c issuer=United States-1938-2c Not used by any overprinted stamps. Used by 7 (1 visible) images: See images as array 1937_airmail_stamp_C22.jpg Matches 1 type: United States airmail 2/15/1937 50c car d=China Clipper over Pacific unwmk perf=11 |