A pair of iron-red 'dragon' cupsSeal marks and period of Qianlong 清乾隆 礬紅彩海水趕珠雲龍紋盃一對 《大清乾隆年製》款the base of each with a six-character seal mark in underglaze blue (2)Diameter 2½ in., 6.2 cmFor 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.American Private Collection, received as a gift in 1964, and thence by descent. 美國私人收藏，獲贈於1964年，此後家族傳承A Qianlong mark and period cup of this type is illustrated in Gongting zhencang: Zhongguo Qing dai guanyao ciqi / Treasures in the Royalty: The Official Kiln Porcelain of the Chinese Qing Dynasty, Shanghai, 2003, p. 269. Recent examples sold at auction include one sold at Christie's New York, 15th December 2015, lot 98; and another sold in our Hong Kong rooms, 16th December 2021, lot 5061.Cups of this design were made throughout the Qing dynasty and even in the preceding Ming dynasty. For a Yongzheng period example, compare a pair from the collection of Mr. and Mrs. Paul Bernat and now in the Museum of Fine Arts, Boston, illustrated in Oriental Ceramics. The World's Great Collections, vol. 11, Museum of Fine Arts, Boston, Tokyo, 1976, pl. 258. See also two Chenghua period examples with the dragons in yellow and green enamel, illustrated in A Legacy of Chenghua: Imperial Porcelain of the Chenghua Reign Excavated from Zhushan, Jingdezhen, Hong Kong, 1993, pls C84 and C85.