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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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<p>1973 3p-3½p "Christmas". Superb unmounted o.g bottom marginal set of six imperforate imprimaturs (3p value in a horizontal strip of five), each with a "BPMA" handstamp on reverse, showing sheet number (017693) in margin. Scarce. SG 943/48.</p>

Great Britain 1973 3p-3½p "Christmas", Set of Six, BPMA Imprimatur, SG 943/48

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Great Britain 1973 3p-3½p "Christmas", Set of Six, BPMA Imprimatur, SG 943/48

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