A set of six Royal Mail Collectable 1st Class Stamps featuring images of Royal Observatory Greenwich.

Royal Observatory Greenwich 350 Celebration Royal Mail Collectable 1st Class Stamps Pack of 6

£10.20
£10.20

These special edition commemorative stamps have been created to celebrate the 350-year history of, and the scientific developments achieved at the Royal Observatory, Greenwich, since its foundation in 1675. This beautiful collection showcases 6 Royal Mail First Class stamps.

  • Flamsteed House, which was completed in 1676
  • Airy Transit Circle Telescope installed in 1851
  • Shepherd Gate Clock, the Observatory's first public clock, 1852
  • The Prime Meridian, chosen as the centre of time and longitude in 1884
  • Great Equatorial Telescope installed in 1893
  • Annie Maunder Astrographic Telescope installed in 2018 for astrophotography

In 2025, the Royal Observatory Greenwich celebrates its 350th anniversary. Founded by Charles II in 1675 to solve the problem of finding longitude at sea and save sailors’ lives, the Royal Observatory Greenwich also became the home of Greenwich Mean Time and the Prime Meridian, making it one of the most important historic scientific sites in the world.

The Royal Observatory was founded by King Charles II and is one of Britain’s oldest institutions.


The Royal Observatory, Greenwich, was founded to provide better star charts that would enhance navigation for global trade. Flamsteed House became home to ten successive Astronomers Royal who observed the stars and developed new instruments such as the Airy Transit Circle and Great Equatorial Telescope. Greenwich Mean Time (GMT) was made publicly visible via the Shepherd Gate Clock and its distribution via telegraph signals became an essential part of daily life. Out at sea, Royal Navy surveyors plotted their longitude from Greenwich using chronometers based on John Harrison’s revolutionary marine timekeepers. The widespread
use by ships worldwide of charts based on the Greenwich Meridian contributed to the international recognition of Greenwich as Prime Meridian of the world in 1884.


The Observatory survived two world wars but was ultimately defeated by London’s polluted skies. Today the historic site welcomes thousands of visitors each year and attracts even more people online with livestream events from the Annie Mauder Austrographic Telescope.
  • Stamp size 60mm x 30mm 
  • x6 First Class Stamps

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Royal Observatory Greenwich 350 Celebration Royal Mail Collectable 1st Class Stamps Pack of 6
£10.20

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