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desc_issuer: China desc_year: 1937 Related descs: issuer=China-1936-2c issuer=China-1938-5c-grn-perf=12.5 Not used by any overprinted stamps. Matches 2 types: China postage 1937 20c ultra issue=1931b d=Sun Yatsen (1931) var=single heavy circle unwmk China postage 1937 1c grn d=Sun Yatsen (1931) var=single heavy circle oc=blk on=issue=1931b-4c-grn unwmk |