The Royal Mint has been issuing Gold coin proof sets since 1980 and in 1983 the 3 coin set was introduced (without the Five Pounds). In 2010 a Quarter Sovereign was added thus introducing the 5 coin set. The key date is 1989 which commemorates 500 years since the Sovereign was introduced. 

Please see our Gold Proof Coin Sets for sale below:

Gold Decimals & Proof Sets

Item	Date	Description	Grade	Additional Desc	Price
Gold Proof 50p	2021	Tokyo	FDC	in COI	£1,100.00	Buy