This Royal Mail issue looks at the Age of the Dinosaurs, which lasted from 252 to 66 million years ago.
The miniature sheet has been created in partnership with the Natural History Museum and features the pioneering fossil hunter and palaeontologist Mary Anning.
The Gold 500 cover image is framed by a 22ct gold-blocked border and the cover bears a London SW handstamp for the location of the Natural History Museum. The cover additionally features a 1991 dinosaur commemorative. Numbered limited edition of 500.
