The 1850 Prince Consort essays are amongst the most sought-after and costly British philatelic stamps were issued in 1851. This stmp was designed by the artist Robert Edward Branston, they were printed in red, red-brown, black and blue. The 25 stamps perforated 16 by Archer are very costly. The majority is imperforate. In December 2010, at Spink auction one of the 1850 1d Black Prince Consort essay was sold for $2,700.
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