Great Britain 1915 2s6d reddish brown (chestnut) "Seahorses", SG407var.
A superb unmounted mint, with full original gum, example of this difficult shade printed by De La Rue.
GB Specialised Catalogue No: N64(12).
Accompanied with a 2013 Royal Philatelic Society (RPS) Certificate of Authenticity.
SG Catalogue Value: £3,250.
