Penny Post much needed reforms in the current postal system. On 10 January 1840, the Uniform Penny Post was established throughout the UK, facilitating the safe, speedy and cheap conveyance of letters, and from 6 May could be prepaid with the first postage stamp, known as the Penny Black. Elihu Burritt proposed that a fixed rate of one penny be established for all mail throughout the entire British Empire as a means of facilitating international interaction and international unity. This was known as the Ocean Penny Post. On Christmas Day, 1898, the Imperial Penny Post extended the rate throughout the British Empire
Penny Black of new red stamps, but a small number were printed in black. These are scarce. The stamps were printed in unperforated sheets, to be carefully cut with scissors for sale and use. As a result, stamps with badly cut margins, or no margins, are common and worth very little, while examples with four clear margins are rare and valuable, and fetch very high prices, especially if in mint condition. An original printing press for the Penny Black, the "D" cylinder press invented by Jacob Perkins and patented in 1819, is on display at the British Library in London. The total