The first set of special stamps for 2019 have been announced, featuring designs released in the reign of monarchs from Queen Victoria to Queen Elizabeth II.
The so-called Stamp Classics include the Queen Victoria £1 green of 1891, the King Edward VII 2d Tyrian plum of 1910 and the King George V 2s 6d of 1913.
The Royal Mail said the new issue marks the 150th anniversary of the Royal Philatelic Society London (RPSL).
It also comes on the 50th anniversary of the Queen opening the National Postal Museum.
Richard Stock, of the RPSL, said: "The Royal Philatelic Society London welcomes the excellent Royal Mail Stamp Classics released early in the Society's 150th Anniversary celebrations.
"The stamps featured are truly representative of those issued during each reign."
