ELIZABETH II D G REG FID DEF 100 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
The head of Britannia, with a corinthian helmet, facing left, flanked by BRITANNIA ONE OUNCE FINE GOLD
Reference
United Kingdom. 100 Pounds (Gold) 2003, London. CoCo GB-2003-0008.