Postal Notice E. S. Lees
The Post Office changed the colour of the cancelling ink to black in the beginning of 1841 to make it difficult to remove from the stamps. The cancel on a black stamp was difficult to see so they decided to change the colour of the 1d stamp from black to red. At the same time it was decided to modify the desing of the 2d stamp with the additionof two white lines and change the much derided Mulready stationery for less fussy designs.
The next step was to inform the thousands of postmasters of this decision and to send them copies of the new stamps and postal stationery so that they could be recognised by them ance they had been issued and in general cirulation. It was decided to send a circular to all Postmasters, Sub-Postmasters and Letter Receivers from E.S.Lees, the secretary of the General Post Office, in Edinburgh, with the new stamps and stationary affixed to it.
See also: Great Britain Penny stamps from 1840-1879 - Franz Zehenter (German)

