Two penny blue to be sent anywhere within Britain; the Two Penny Blue's weight limit was a full ounce. Two penny blue The Two Penny Blue or The Two Pence Blue was the world's second official postage stamp, produced in the United Kingdom of Great Britain and Ireland and issued after the Penny Black. Initial printing took place from 1 May 1840, and in all 6,460,000 were printed from two plates until 29 August. Officially the stamps were valid for postage from 6 May but were only available from 8 May. It was first sold to the public at the London Inland revenue
Penny Black sheet to present as gifts to dignitaries and other important people. Individual stamps from an Imprimatur sheet can thus be found for sale on the open market. A complete sheet of the Penny Black without check letters is held by the British Postal Museum. This unique item is in fact a plate proof, and by definition not an imprimatur sheet. The Penny Black was printed from 11 plates, but as Plate 1 was completely overhauled due to excessive wear, it is generally considered to be two separate plates, 1a and 1b. Plate 11 was originally intended solely for the printing