Sale No. S25022Please note our Buyer’s Premium has changed to 23% + VAT effective from the 1st of December 2025

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A H Baldwin & Sons Ltd has a history that dates back to 1872, and is one of the largest and longest established numismatic dealers and auction houses in the world. As a distinguished name in the numismatic trade, they have seamlessly transitioned into the world of bullion, bringing unparalleled expertise and commitment to quality to a broader audience.

Established in 1872, Baldwin's has been a cornerstone of the numismatic trade, earning a reputation for integrity, authenticity, and a passion for the rare and precious. For over a century and a half, we have been at the forefront of preserving and promoting the art and history encapsulated within rare coins and precious metals.

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1912-24 Royal Cypher 2½d dull Prussian blue, mint large part o.g. control R21 marginal single with lovely deep colour. Slightly short perf at top. Rare. Hendon Stamp Company opinion. SG 373a, Spec N21(17)&nbsp;

GB SG 373a 1912-24 2½d dull Prussian blue control single mint

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Margin Scheme

GB SG 373a 1912-24 2½d dull Prussian blue control single mint

Description