Two penny blue 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 office on 6 May 1840. Except for its denomination, the design is exactly the same as
Penny Black known on cover dated 1 May 1840. All London post offices received official supplies of the new stamps but other offices throughout the United Kingdom did not, continuing to accept payments for postage in cash for a period. The Penny Black lasted less than a year. A red cancellation was hard to see on the black design and the red ink was easy to remove; both made it possible to re-use cancelled stamps. In February 1841, the Treasury switched to the Penny Red and began using black ink for cancellations instead, which was more effective and harder to remove. However,