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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 11/2d Puple-brown Postal Union Congress (Wmk. upright). Superb unmounted o.g imperforate horizontal pair of imprimaturs with 42mm gutter margin from the endways coil printing with "BPMA" handstamps on reverse. Very scarce. SG 436.</p>

Great Britain 1929 1½d Puple-brown Postal Union Congress, Horizontal Pair, BPMA Imprimatur, SG 436

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Margin Scheme

Great Britain 1929 1½d Puple-brown Postal Union Congress, Horizontal Pair, BPMA Imprimatur, SG 436

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