Tin-glazed plate is a plate found in the Nottingham caves which date back to 18th century. It covered in glaze containing tin oxide which is white, shiny and opaque. The pottery body is usually made of red or buff colored earthenware and the white glaze was often used to imitate Chinese porcelain. Tin-glazed pottery is usually decorated, the decoration applied to the unfired glaze surface by brush as metallic oxides, commonly cobalt oxide, copper oxide, iron oxide, manganese dioxide and antimony oxide. The makers of Italian tin-glazed pottery from the late Renaissance blended oxides to produce detailed and realistic polychrome paintings.
The earliest tin-glazed plate appears to have been made in Iraq in the 9th century, the oldest fragments having been excavated during the First World War from the palace of Samarra about fifty miles north of Baghdad. From there it spread to Egypt, Persia and Spain before reaching Italy in the Renaissance, Holland in the 16th century and England, France and other European countries shortly after. In particular, in the 18th century, a tin glazed plate found in the Nottingham caves
Reference
https://en.wikipedia.org/wiki/Tin-glazed_pottery