desc_issuer: Shanghai desc_issue: 1893b desc_denom: 20c Used by 1 overprinted stamp: Shanghai postage 1896 6c lil&blk issue=1896a d=flags in Y shape oc=blk on=issue=1893b-20c Not used by any images. Matches 1 type: Shanghai postage 1893 20c lil&blk issue=1893b d=flags in Y shape |