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 (unit) nail, the higher the cost per long hundred. The system remained in use in England into the 20th century, but is obsolete there today. The d is an abbreviation for "denarius", a Roman coin similar to a penny; this was the abbreviation for the monetary penny in the United Kingdom before decimalisation. Penny (unit) In the United States, the length of a nail is designated by its penny size, written with a number and the abbreviation d for penny; for example, "10d" for a ten-penny nail. A larger number indicates a longer nail, shown in the table below. Nails under