Great Britain 1840 2d Blue, Imperforate, Plate II (SG 8)
A genuine used example as certified by the Royal Philatelic Society London Expert Committee (Certificate No. 197115, dated July 25, 2007). A classic early British stamp, Plate II, prized for its rich color and historic significance.
SG catalog value: £650
Recent sales: £375–£550 (~USD 480–700), condition dependent.