JIAQING FOUR-CHARACTER WHEEL-CUT MARKS WITHIN A SQUARE AND OF THE PERIOD (1796-1820)

Turquoise or sky-blue vases of this mallet or 'horse hoof' shape were also made in the Qianlong period, such as the vase with Qianlong mark in the collection of Robert H. Ellsworth, included in the exhibition, Clear as Crystal, Red as Flame', China Institute, New York, 21 April - 16 June 1990, no. 35, and another sold at Christie's New York, 20 March 2001, lot 5.
A very similar vase, also with Jiaqing mark, which appears to have similar swirling in the opaque sky-blue glass, in the Robert Clague Collection, is illustrated by C. Brown and D. Rabiner in Chinese Glass of the Qing Dynasty, 1644-1911, Phoenix Art Museum, 1987, pp. 42-3, no. 43. A transparent green glass example, also with Jiaqing mark, was included in the exhibition catalogue, The Minor Art of China III, Spink & Son Ltd., London, 1987, p. 90, no. 118.