Issued to mark 100 years since the birth of Queen Elizabeth II, this official Centenary Datestamp™ brings together numismatic craftsmanship and postal history in a strictly limited edition.

At its centre is the 2026 Queen Elizabeth II Centenary Silver Sovereign, struck in Fine Silver to a Proof Finish. 

Each coin is paired with an official 1st Class stamp and has been postmarked by Royal Mail with 21st April 2026 — the exact centenary date.

• One-day-only Royal Mail postmark (21 April 2026)
• Special 2026 Queen Elizabeth II Centenary Silver Sovereign – Struck from Fine Silver to a Proof Finish
• Limited to just 995 editions worldwide

The one-day-only postmark ensures that no additional issues can ever be produced, permanently fixing the edition at 995.

A distinguished addition for collectors, combining a newly issued sovereign with an officially dated postal tribute.

Specifications