Proof -- die proofs of the large and small "SERVICE" overprints, each in black on glazed card (92x60mm.) dated in 1920 and 1921 respectively | Christie's

Lot 302

302

Proof -- die proofs of the large and small "SERVICE" overprints, each in black on glazed card (92x60mm.) dated in 1920 and 1921 respectively

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Proof -- die proofs of the large and small "SERVICE" overprints, each in black on glazed card (92x60mm.) dated in 1920 and 1921 respectively