desc_issuer: China desc_issue: Martyrs secret mark unwmk desc_denom: 28c desc_denom2: 28c (# 4524) Used by 2 overprinted stamps: Hopei postage 1941 28c ol issue=1941g dt=martyrs (1932) d=Sung Chiaojen var=joined character ovpt=Hopei oc=blk on=issuer=China-issue=Martyrs secret mark unwmk-28c unwmk Shantung postage 1941 28c ol issue=1941g dt=martyrs (1932) d=Sung Chiaojen var=joined character ovpt=Shantung oc=blk on=issuer=China-issue=Martyrs secret mark unwmk-28c unwmk Not used by any images. Matches 1 type: China postage 1941 28c ol issue=Martyrs secret mark unwmk dt=martyrs (1932) d=Sung Chiaojen var=joined character unwmk |