Warming bowls consist of a shallower upper bowl joined to a deeper lower bowl at the rim. The lower bowl has a circular hole in its base. This construction would have allowed the cavity between the two bowls to be filled with hot water, and the hole in the base of the lower bowl to be closed with a wooden or cork plug.
Other warming bowls are in the collections of the Victoria and Albert museum in London, the Percival David Foundation in London, the Nanjing Museum and the Asian Art Museum in San Fransisco.
Comparative Literature: M. Medley, Illustrated Catalogue of Underglaze Blue and Copper Red Decorated Porcelains, Percival David Foundation, London, 1963, nos. 670, 696 and A623.
M. Medley, Illustrated Catalogue of Ming Polychrome Wares, Percival David Foundation, London, 1966, no. 749.
R. Kerr, Chinese Art and Design, London, 1991, p. 23.
D. Lion-Goldschmidt, Ming Porcelain, New York, 1978, p. 101, pls 67 and 67a.