An unusual bronze jug 'he'

Description:

China, Han dynasty
H. 24,5 cm
Bulbous body on a slightly conical stand. Partial malachite-coloured patina. The lid is connected to the handle with a ring chain.
Collection Klaus Nierhoff (1926 - 2011), acquired at Lempertz Köln on 17 June 1994, lot 3 (invoice and description preserved) - Part. green corroded