In 2008 to celebrate the 25th Anniversary of the first £1 One Pound Coin, the Royal Mint released a special Limited Issue Millennium Bridge £1 One Pound Silver Proof Coin struck in solid .925 Sterling Silver and plated in 24 Carat Gold Certified Slabbed and Graded by PCGS as PR69 DCAM.
The reverse depicts the Gateshead Millennium Bridge designed by Edwina Ellis and the obverse is a portrait of Queen Elizabeth II, designed by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.