Royal Mail has released images of stamps featuring King Charles III, which will be available to buy from early April.
According to the Royal Mail website, the 'everyday' stamps use an image adapted of a portrait created by Martin Jennings for the Royal Mint, which will be used on new coins.
King Charles is facing to the left on the stamp and is not wearing a crown, in contrast to stamps featuring a likeness of his late mother, Queen Elizabeth II, where she was facing to the right and sporting the Diamond Diadem crown.
Royal Mail said there is a precedent for the image used in stamps of a king not wearing a crown.
First-class stamps will be a 'plum purple' colour, second-class 'holly green', large first-class stamps 'marine turquoise', and second-class large 'dark pine green'.
Royal Mail, which is part of International Distributions Services PLC (LSE:IDS), said existing stamps featuring Queen Elizabeth will be distributed and issued as planned and will remain valid for use.
Earlier this week Royal Mail workers were forced to call a 24-hour strike that had been scheduled for 16/17 February, as a result of a legal challenge by the company over the validity of the advance notice given by the union.
However, the Communications Workers Union is renewing its mandate for industrial action with a new ballot of its members, which is expected to be followed by legally compliant notice given to the company.