The UK's most valuable postage stamp has been listed for sale - for £650K. The legendary Plate 77 Penny Red was printed in 1864 and just nine examples of the stamp still exist. Three remain in private ...

A Plate 77 Penny Red - the “rarest and most valuable” stamp in the UK - is set to break records. It is one of nine in existence and has been described as "legendary" because it shouldn't exist.

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