A small and rare red glass zhadouMark and period of Qianlong清乾隆 透明紅料小渣斗 《乾隆年製》款the base incised with a four-character mark within a double square Height 2 in., 5.2 cm In overall good condition with minor manufacturing imperfections, including a burst bubble to the interior wall of the mouth. 整體品相良好，見少許原始瑕疵，包括口內壁一處微細破泡。 For more information on and additional videos for this lot, please contact serina.wei@sothebys.comIn response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.Sotheby's Hong Kong, 20th May 1987, lot 611. J.J. Lally & Co., New York, 1987. 香港蘇富比1987年5月20日，編號611 藍理捷，紐約，1987年The present zhadou is unique in its small size, ovoid body and short flaring neck. Qianlong reign-marked zhadou of a larger size with a longer neck and a more compressed body are more commonly known: see a realgar-imitation example sold at Christie's Hong Kong, 1st June 2011, lot 3798, and a yellow glass zhadou from the collection of Alan Feen, included in the exhibition A Chorus of Colors, Asian Art Museum of San Francisco, San Francisco, 1995, cat. no. 61, and sold at Bonhams Hong Kong, 24th November 2010, lot 203.For a Yongzheng reign-marked yellow glass zhadou of larger size and fluted form in the Palace Museum, Beijing, see Luster of Autumn Water. Glass of the Qing Imperial Workshop, Beijing, 2005, no. 11.