1937 Plain Edge Proof Half Gold Sovereign 
In 1937 5001  Proof Sovereigns were minted
The Obverse is by Humphrey Paget and the Reverse by Benedetto Pistrucci

The coin weighs 3.99 grams of 22 carat gold

Produced to commemorate the coronation of George VI, 5001 4 coin proof Sovereign sets were minted in 1937. The set comprised of the £5 Crown, double Sovereign, full Sovereign and half Sovereign. Over the years, many of these sets have been split up and the coins sold separately.
The 1937 Sovereign set is unique in that the coins were minted with plain edge, rather than the usual milled edge 

You will receive the exact pictured coin