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