Why We Stopped Using the 1d Penny Black: A Story of the 1d Penny Red Postage Stamp
23 Jun 2024 · 0 min

0:25
Britain's 1d Penny Black stamp was replaced by the Penny Red in 1841 because the dark color made cancellation ink invisible, letting people clean and reuse stamps. Red-brown ink solved the problem by making tampering obvious.










