A limited edition collection of just 5,000 individually-numbered souvenirs honouring the Tower of London’s guards and guardians – its famous Yeoman Warders and beloved ravens.

This unique keepsake includes a silver-plated medal with a colour-printed Raven of the Tower on the front and the Ceremony of the Keys on the reverse.

The issue’s six main stamps appear on a custom envelope featuring a Yeoman Warder and brass lantern on the cover and a spoken exchange from the Ceremony of the Keys on the reverse.

The stamps are cancelled with a postmark designed exclusively for this collectible containing the words ‘Halt, who comes there?’ and the location of the Tower of London, London EC3.

The Medal Cover’s insert includes stories and images exploring the history, legends and traditions surrounding the Tower of London's Yeoman Warders and beloved ravens.