The Kirkcudbright cover, a first-day cover with ten penny blacks, mailed on 6 May 1840, the first day it was valid. Around 70 examples are known, but this is the only one with more than two stamps
George VBiography of the stamp-loving king
St. James’s PalaceThe home of the Royal Philatelic Collection
SUGGESTED LINKSThe Royal Philatelic Society London