desc_issuer: Canal Zone desc_year: 1921 desc_denom: 1c Related descs: issuer=Canal Zone-1920 issuer=Canal Zone-1922 Not used by any overprinted stamps. Used by 6 (0 visible) images: See images as array Matches 1 type: Canal Zone postage 11/13/1921 1c grn&blk issue=100th ovpt=CANAL//ZONE oc=blk on=issuer=Panama-1c-grn&blk |