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 It superseded the short lived Penny Venetian Red because the Customs and Inland Revenue Act of 1881 necessitated new stamps that were also valid as revenue stamps, and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 Black for official use to government departments such as the tax office and the idea of introducing an official stamp was abandoned. Only a few postally used examples exist, which probably originate from the Post Office circulars sent out as advance notice of the new stamps. Four are known on covers; all were cut from their envelopes and then replaced. Most of the cancelled examples are from trials of cancellation types, inks, and experiments with their removal. Those trials led to the change from black to red stamps, and vice versa for the cancellations. Considered a British cultural icon, the Penny