desc_issuer: China desc_year: 1939 desc_denom: 50c desc_color: dkbl desc_var: secret mark Related descs: issuer=China-1938-5c-grn-perf=12.5 issuer=China-1940 Used by 1 overprinted stamp: China postage 1942 40c dkbl issue=1942 d=Sun Yat-sen (1938) var=secret mark oc=blk on=1939-50c-dkbl-var=secret mark unwmk perf=14 Not used by any images. Matches 1 type: China postage 12/6/1939 50c dkbl issue=1939 secret marks d=Sun Yat-sen (1938) var=secret mark unwmk perf=14 |