desc_issuer: Hopei desc_denom: 4c Not used by any overprinted stamps. Used by 1 (0 visible) image: See images as array Matches 4 types: Hopei postage 1941 4c grn issue=1941a d=Sun Yatsen (1931) var=single heavy circle ovpt=Hopei oc=blk on=issuer=China-4c-var=single heavy circle unwmk Hopei postage 1941 4c ltvio issue=1941g dt=martyrs (1932) d=Deng Keng var=joined character ovpt=Hopei oc=blk on=issuer=China-issue=Martyrs secret mark unwmk-4c unwmk Hopei postage 1942 4c issue=fall of Singapore Hopei postage 1942 4c issue=Manchukuo 10th |