Jean Dassier of Geneva published a series of 34 medals of the Kings and Queens of England in 1731. They were offered for sale in England at 6 guineas in bronze and 15 guineas in silver. They were also available in damascened bronze with the fields of the medals bronzed and the relief gilded. The dies for the series came into the possession of Sir Edward Thomason, who reissued the medals around 1820. The earlier medals were struck on slightly thinner flans with slightly beveled edges. They have a finish that is a little duller. The later issues have slightly more reflective surfaces and vary in the color of their patination. Some show signs of die wear and defects. Examples cast from struck medals also exist. They are slightly smaller in size and poorer in quality.