Stamps and Postal History of the World

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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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1929 Postal Union Congress ½d, interpanneau marginal block of four, imperforate 'IMPRIMATUR' with "BPMA" handstamps on reverse. Slight patch of adherence in central margin otherwise fine unmounted og. Scarce. SG 434 var

1929 Postal Union Congress ½d,...

Margin Scheme

1929 Postal Union Congress ½d,...

Description