In 2013, to celebrate the 150th Anniversary of the London Underground, the Royal Mint released a Limited Issue London Underground Roundel £2 Two Pound Proof Coin.
The reverse designed by Edwina Ellis depicts the London Underground Roundel Logo while the obverse design features the stunning portrait of Queen Elizabeth II by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.