Penny Lilac as perfins - that is with initials or insignia added as perforations to mint stamps which meant they could not be redeemed for cash at a post office. The addition of perfins was widespread practice in Britain from the 1860s as a precaution against theft. Penny Lilac The Penny Lilac was the basic penny postage stamp of Great Britain from its first issue on 12 July 1881 and was used until 1901. It superseded the short lived Penny Venetian Red because the Customs and Inland Revenue Act of 1881 necessitated new stamps that were also valid as revenue stamps, and
Penny Red issued until 1971 when decimal currency was introduced when the sheet size was changed to 200, (20 rows of 10 stamps) making the lowest value denomination (half penny) one pound per sheet. On 1 April 1864, the stamp was issued with the plate number engraved in the design, in the left and right side lace work. At this time, the stars in the top corners were also replaced with the same check letters as used in the lower corners, but in reverse order. Because of wear, over 400 different plates were used to print the Penny Red. Two different basic