Great Britain 1915 2s6d brown "Seahorses, SG407var.
A very fine unmounted mint, with full original gum, vertical pair printed by De La Rue.
A lovely quality multiple of this very difficult to find shade from the most famous stamp issue of the reign of King George V.
GB Specialised Catalogue No: N64(10).
Accompanied with a 2017 Royal Philatelic Society (RPS) Certificate of Authenticity.
SG Catalogue Value: £4,800+.