From the 1960s to the early 1990s, the Royal Mint had a policy of assigning the same artist to particular territories / countries. Mr Ironside did many of Gibraltar's early collector designs. Around 1980 or slightly later, Mr Ironside decided that he was owed royalties on the UK proof sets, since his designs appeared on them. He lost his case, and he may possibly have been out of favour with the Royal Mint for a while after that. However, he did later produce the designs for Singapore's floral series of circulation coins, first issued in 1986.