Great Britain 1912 2½d pale blue variety, SG372var.
A very fine unmounted mint, with full original gum, left hand marginal vertical strip of five showing complete "POSTAGE" watermark with selvedge attached. The selvedge showing "POSTAGE" watermark inverted.
A magnificent example of this very rare King George V watermark printing variety.
GB Specialised Catalogue No: N21(11)yc.
Accompanied with a 2012 Royal Philatelic Society (RPS) Certificate of Authenticity.
