Ironside designed various coins for the Royal Mint, including the reverse of the pre-2008 British 50 pence, ten pence, five pence, two pence, and one penny coins, as well as the former half penny coin. He designed coins for the Isle of Man, Singapore, Tanzania, Brunei, Qatar and Dubai. He designed commemorative medallions including: the Britannia Commemorative Society's Medallion No.7 "The Spanish Armada" and No.42 "The Royal Navy"; the medal for the 1974 Centenary of Sir Winston Churchill's birth "This was Their Finest Hour"; the brass relief memorial for the Earl and Countess Mountbatten in Westminster Abbey; and, the brass relief for the 16th Duke of Norfolk in Arundel Castle (Fitzalan Chapel).