QIANLONG ENGRAVED FOUR-CHARACTER MARK WITHIN DOUBLE-SQUARE AND OF THE PERIOD (1736-1795)

There is a long history of making glass decorative objects and vessels in imitation of nephrite dating back to the Han dynasty. A greenish-white glass hexagonal cup from the Cunliffe and Walter and Phyllis Shorenstein Collections dating to the 15th-16th century, was sold at Christie's Hong Kong, 1 December 2010, lot 2911, where a Qianlong marked opaque white glass vase sold as lot 2920. A number of white glass vessels imitating jade where included in the exhibition, A Chorus of Colours: Chinese Glass from Three American Collections, Asian Art Museum of San Francisco, 1995, and illustrated in the Catalogue, nos. 17, 18, 21, 54, 55, 57, 58 and 59 in addition to those sold from the Shorenstein Collection.