Great Britain 1911 2½d bright blue (watermark inverted), SG276wi.
A superb unmounted mint, with full original gum, top left hand corner marginal example of this scarce watermark variety, severely misplaced and only showing the base of the crown. Printed by Harrison & Sons.
GB Specialised Catalogue No: M17(2)a.
SG Catalogue Value: £1,500+.