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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 6d Rosy mauve (Somerset House printing). Very fine unmounted o.g. bottom marginal imperforate "K.29" control block of six imprimaturs printed on Super Calendered paper with "BPMA" handstamps on reverse. Dated in manuscript in sheet margin at lower left "8/4/29" and initialed "HWL" H.W. Longley (Director of Stamping). A couple light gum creases nevertheless a unique positional piece. SG 426a.</p>

Great Britain 1929 6d Rosy mauve, Control Block of Six, BPMA Imprimatur, SG 426a

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Great Britain 1929 6d Rosy mauve, Control Block of Six, BPMA Imprimatur, SG 426a

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