ELIZABETH II D G REG FID DEF 25 POUNDS around the effigy of Elizabeth II facing right with a crown. On the lower end of the shoulder the initials of the engraver
Description reverse
A sitting Britannia wearing a corinthian helmet. With her right hand she holds an owl, in her left a trident. In the section below 1/4 OUNCE FINE GOLD BRITANNIA
Reference
United Kingdom. 25 Pounds (Gold) 2013, The Royal Mint. CoCo GB-2013-0023.