Round based dish, internal sloping rim and interior countersunk base with circular depression at centre. The rim is broken in four places. Compare with Ali el-Khouli, 'Egyptian Stone Vessels Predynastic Period to Dynasty III' (Mainz, 1978) no. 4848 - 4852, pp. 620-1, pl. 112-3. Presented to the Wellcome Historical Medical Museum (no. 58262) by Professor Flinders Petrie in September 1927 (dated to 1st - 2nd Dynasty).