To mark the 350th anniversary of the foundation of the Royal Observatory, Greenwich, Royal Mail have released a set of six 1st class stamps. The stamps celebrate the history and scientific developments achieved at the Observatory since 1675, the photographs on the stamps show: Airy Transit Circle Telescope; Flamsteed House; Great Equatorial Telescope; Annie Maunder Astrographic Telescope; Prime Meridian and Shepherd Gate Clock.
The Gold 500 cover image is framed by a 22ct gold-blocked border and the cover bears a London SE10 handstamp. Numbered limited edition of 500.