Great Britain 1851 2d violet blue plate 4, SG15aa.
Great Britain 1841 2d Violet blue (Thicker lavender tinted paper) Plate 4, SG15aa.
Superb unused original gum example with four very large to enormous margins lettered SE. Unmounted Mint.
The best quality example we have ever seen of this beautiful and very difficult stamp to find.
In 1851 a few sheets of the new Twopenny Blue were printed and something went wrong…
The printing ink reacted with a bleaching agent in the paper creating the rarest shade of the 2d Blue – “The 2d Violet Blue”.
There are less than 20 known surviving examples of this very rare stamp.
Accompanied by a 2001 British Philatelic Association (BPA) Certificate.
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