1841 1d Reds from Black Plates
In order to prevent fraudulent cleaning and re-use of stamps, it was decided in late 1840 to change the colour of the stamps from black (which was colour-fast) to red-brown. Printing began on 30 December and continued in January 1841, with a view to issuing of the stamps in Red-brown on 10 February 1841. The only plates available at press at that time were plates which had previously been used for printing the 1d Black, namely 1b, 2, 5, 8, 9, 10 and 11. Plates 1b and 2 are very scarce in red, and Plate 11 was originally intended only for use in red, as the first of a new series of plates. However it was brought into emergency use for a few days printing in black in January 1841 as the supply of black stamps was running low, so it is traditionally (albeit strictly incorrectly) regarded also as a 'Black' Plate.