Luster Bowl with Ibex, 1000s, Egypt, Fustat (Old Cairo), Fatimid period (909–1171). Earthenware with luster-painted design. Overall: 9.6 x 24.7 cm. Cleveland Museum of Art. Purchase from the J. H. Wade Fund 1944.477.

Lusterware seems to have been a secret process, confined to a small number of craftsmen.
The expensive and unpredictable luster technique was transmitted by Iraqi potters to the more prosperous Fatimid court in Cairo where it flourished from around 1000 until about 1171.