Sewer Pipe from Epang Palace
Qin Dynasty.
Unearthed at the ruins of Epang Palace,Xianyang,Shanxi Province.Grey pottery.L:66 cm,h:41 cm,wall t:5 cm,d:5.9 cm.
Pentagonal in CROSS—section but triangular in the upper part,with a small orifice at one side-a rational design.Used for discharging waste water in the palace.(Collection of China Museum for the History of Medicine)