Great Britain 1841 1d Red brown Plate 131, SG8. A very fine and fresh four margin right hand marginal imperforate unused original gum horizontal pair lettered GK-GL, printed on thicker lavender tinted paper (Early stage).
A very scarce and most attractive rarity of stunning quality.
GB Specialised Catalogue Number: B1(1)L
Accompanied with a 1990 British Philatelic Association (BPA) certificate of authenticity.