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desc_issuer: Shanghai desc_denom: 15c desc_wmk: unwmk desc_perf: 15 Used by 1 overprinted stamp: Shanghai postage due 1892 15c issue=1892a ovpt=Postage//Due.(gothic) oc=blk on=15c-unwmk-perf=15 unwmk perf=15 Not used by any images. Matches 2 types: Shanghai postage 1890 15c bl issue=1890 d=shield with dragons unwmk perf=15 Shanghai postage due 1892 15c issue=1892a ovpt=Postage//Due.(gothic) oc=blk on=15c-unwmk-perf=15 unwmk perf=15 |