Note: Do not rely on this information. It is very old.
Crownpiece
Crown-piece, in England a silver piece of the value of 5s. - lately almost fallen into disuse, but now revived again. Originally it gained its name from having a crowned head upon the obverse, but at present this is no peculiarity. Formerly there were also gold crown-pieces. The coin was introduced by Edward III., Edward VI., James I.; and Charles I. used the figure of the sovereign on horseback, but from Charles II. to Victoria the head of the sovereign formed the obverse, while now and latterly the reverse bears a representation of St. George slaying the Dragon.