Brownish-red ceramic mould for an amulet in the shapoe of a grape bunch. At the royal city of Amarna in 1892, Professor W. M. Flinders Petrie discovered thousands of ceramic moulds used to make faience rings, jewellery and amulets. Made from the same raw materials as glass (silica, soda and lime) faience was prepared as a paste and shaped in moulds before firing. Different glazing techniques produced a variety of colours. On this mould there is a white substance is still visible in the cavity. String marks and burn marks surrounding the design suggest its use.