The Dunstable Swan Jewel is a gold and enamel brooch in the form of a swan made in England or France in about 1400 and now in the British Museum, where it is on display in Room 40. The jewel was excavated in 1965 on the site of Dunstable Friary, and is presumed to have been intended as a livery badge given by an important figure to his supporters; the most likely candidate was probably the future Henry V of England, who was Prince of Wales from 1399. The jewel is a rare medieval example of the then recently developed and fashionable white opaque enamel used in en ronde bosse to almost totally encase an underlying gold form. It is invariably compared to the white hart badges worn by King Richard II and by the angels surrounding the Virgin Mary in the painted Wilton Diptych of around the same date, where the chains hang freely down. The jewel is formed as a standing or walking mute swan gorged (collared) by a gold royal crown with six fleur-de-lys tines. There is a gold chain terminating in a ring attached to the crown, and the swan has a pin and catch on its right side for fastening the brooch to clothes or a hat. The swan is 3.2 cm high and 2.5 cm wide, and the length of the chain is 8.2 cm. The swan's body is in white enamel, its eyes are of black enamel, which also once covered the legs and feet, where only traces now remain. Tiny fragments of pink or red enamel remain on the beak. Livery badges The jewel is a unique survival of the most expensive form of livery badge, otherwise only known from inventories and representations in paintings. These were badges in various forms made for a leading figure bearing his personal device, and given to others who would demonstrate by wearing them that they were in some way his employees, retainers, allies or supporters. They were especially common in England in the age of "bastard feudalism" from the mid-fourteenth century until about the end of the fifteenth century, a period of intense factional conflict which saw the deposition of Richard II and the Wars of the Roses. A lavish badge like the jewel would only have been worn by the person whose device was represented, members of his family or important supporters, and possibly