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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1959 3d Deep violet “Dollis Hill Phosphor Trial“. Very fine vertical strip of five on gummed Crowns watermarked (upright) paper, with a 4mm blue phosphor centre band printed under the ink. Scarce. SG 575var; Spec. ST7(4)d.

1959 3d Deep violet “Dollis Hill Phosphor...

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1959 3d Deep violet “Dollis Hill Phosphor...

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