Great Britain 1840 1d black, plate 1a, SG2Great Britain 1840 1d black, plate 1a, SG2. A superb example lettered 'BH' used on a neat entire lettersheet from London to Birmingham on May 6th 1840, the first day of use, tied by red Maltese Cross cancellation. A stunning quality first day cover of the world's first postage stamp marking the dawn of prepaid postage and spawning a communications revolution. Shows a fine circular date stamp for "MY 6 1840". A beautiful display piece of the ultimate