Proof 1880 2c. die proofs in black on glazed card (92x60mm), both dated "Sept.4, 1868" with "BEFORE HARDENING" and "AFTER HARDENING" respectively, fine
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Proof 1880 2c. die proofs in black on glazed card (92x60mm), both dated "Sept.4, 1868" with "BEFORE HARDENING" and "AFTER HARDENING" respectively, fine
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STAMPS AND COVERS OF HONG KONG, TREATY PORTS & CHINA
