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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>1957 4d Inter-parliamentary Union Conference. Superb unmounted o.g imperforate top marginal block of four imprimaturs with "BPMA" handstamps on reverse showing variety "Broken wreath" in position R2/6 and central marginal arrow in margin. Unique. Spec. W8a, SG 560.</p>

Great Britain 1957 4d Inter-parliamentary Union Conference, Block of Four, BPMA Imprimatur, SG 560

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Great Britain 1957 4d Inter-parliamentary Union Conference, Block of Four, BPMA Imprimatur, SG 560

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