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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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1951 1d light ultramarine (Wmk. Upright). Superb unmounted o.g. horizontal pair of imperforate imprimaturs with "NPM IMPRIMATUR" handstamp on reverse. Very rare, Ex NPM Archive sales.

1951 1d light ultramarine (Wmk. Upright)....

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Mr Richard Whiteside & Ms Bronwyn Bevan- Inv

1951 1d light ultramarine (Wmk. Upright)....

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