This 2012 Proof gold Sovereign 5-coin set features a proof Quintuple Sovereign (five-pound coin), Double-Sovereign (two-pound coin), Sovereign, Half-Sovereign and Quarter Sovereign.
 
These proof coins have been struck using specially selected blanks and highly polished dies. During striking, the coinage dies exert enormous pressure on the coin blank, with at least two separate blows (or strikes), ensuring that the impression has extra clarity. Complete with its own Certificate of Authenticity from The Royal Mint.