2003 4 coin Gold Proof Set manufactured by the Royal Mint.

The set contains 4 coins in : 5 pounds, 2 pounds, Sovereign and half sovereign for a total of 2 oz of fine gold. 

The coins are minted in .9167 purity.

A maximum of 2,250 sets were produced.

The set comes with a Certificate of Authenticity which provides the background about the Sovereign as well as the specifications of the coins. 

A rare chance to own a gold Sovereign  Proof set because collectors do not usually put these up for sale.