The first adhesive stamp designed to pay for the delivery of mail has been issued in 1840, in England, with the effigy of Queen Victoria. With a face value of 1 penny, this black stamp was used for a year before other colors come brighten the life of the post office clerks of that time.
You know even better this stamp that I just chose as the logo for this group.
There are two specimens in the sale of
Spink in London on June 12. Not very rare, it is not excessively expensive : Lot 10, which has all its margins, is estimated 5 K£, and lot 9 cropped in the upper left is necessarily cheaper: 3 K£.
Lot 7 is much more important. This is a sheet of 21x26 cm dated August 1840, where are glued 20 copies of the same print as used for the 1p. Each one is a different colour as a result of ink compositions, with or without oil. Each sample is individually annotated by the author of the trials, a man named JB Bacon.
Spink knows a total of five copies of these test sheets. That offered for sale is estimated 300 K£.