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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>1929 Postal Union Congress ½d, 1d and 1½d imperforate Imprimatur blocks of four, unmounted o.g., each with BPMA handstamp on the reverse. &nbsp;Rare. &nbsp;SG 434-6</p>

SG 434-6 1929 PUC ½d, 1d and 1½d imperforate Imprimatur blocks

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SG 434-6 1929 PUC ½d, 1d and 1½d imperforate Imprimatur blocks

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