Limoges enamel

Limoges enamel was produced at Limoges, France, already the most famous, but not the most high quality, European center of vitreous enamel production by the 12th century; its works were known as Opus de Limogia or Labor Limogiae. Limoges became famous for champlevé enamels, producing on a large scale, and then from the 15th century retained its lead by switching to painted enamel, often in grisaille, on flat metal plaques or vessels of many forms.