Royal Observatory Greenwich First Day Cover with London SE10 Postmark

A unique, time-limited commemorative collectible personalised with the name and address of your choice.

The six Royal Observatory Greenwich stamps are cancelled with the alternative postmark on the first day of issue, 12 June 2025.

The stamps celebrate the origins and achievements of this iconic institution in its 350th anniversary year.

Your First Day Envelope includes an information card offering a brief history of the Royal Observatory Greenwich.

Six First Class landscape stamps. 

The alternative postmark includes an illustration of the Royal Observatory's weathervane modelled on the depiction of Halley's Comet in the Bayeux Tapestry.

Flamsteed House, 1676 Home of the Astronomer Royal completed
Airy Transit Circle Telescope, 1851 Observations made to define meridian
Shepherd Gate Clock, 1852 The Observatory's first public clock
Great Equatorial Telescope, 1893 Large refracting telescope installed
Prime Meridian, 1884 Greenwich chosen as the centre of time and longitude
Annie Maunder Astrographic Telescope, 2018 New telescope installed for astrophotography

Stamp Specifications