George III. AV Sovereign, 1817. Engraver Benedetto Pistrucci.

GEORGIUS III D G BRITANNIAR REX F D 1817, laureate head right.
HONI SOIT QUI MAL Y PENSE, St. George on horseback right, killing the dragon. 

Seaby 3785; Fr-371; KM-674. 

Courtesy Ira & Larry Goldberg Auctioneers, Beverly Hills, CA. www.goldbergcoins.com
Sale 31: The Pre-Long Beach Auction May 30 - June 1, 2005, Lot 2520