Proof -- unissued 6a. die proof in black on glazed card (92x60mm.), marked "BEFORE HARDENING" and dated "13 MAY 81". Photo | Christie's

Lot 444

444

Proof -- unissued 6a. die proof in black on glazed card (92x60mm.), marked "BEFORE HARDENING" and dated "13 MAY 81". Photo

Details

Proof -- unissued 6a. die proof in black on glazed card (92x60mm.), marked "BEFORE HARDENING" and dated "13 MAY 81". Photo

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