Great Britain 1840 1d grey-black (worn plate), plate 1a, SG3, "May Date" 23rd May cover.
A superb quality neat and clean cover bearing a four margin 1d grey-black, plate 1a, lettered "OD", superbly cancelled by a crisp strike of a Maltese Cross in a deep-red shade used on 23rd May 1840.
An exceptional exhibition quality display cover bearing the world's first postage stamp marking the dawn of prepaid postage and spawning a communications revolution.
