(Also known as Samarkand ware). A type of pottery, probably produced in Nishapur (Iran) and/or Samarkand (Uzbekistan), during the Abbasid Caliphate, from the ninth to the eleventh centuries. The vessels were decorated with elegant calligraphic inscriptions over a white slip. Web resources here and here.

Samanid epigraphic ware dish. Eastern Iran or Central Asia. Late 10th c. Musée du Louvre, Paris.