A teadust-glazed pear-shaped vaseSeal mark and period of Qianlong清乾隆 茶葉末釉長頸瓶 《大清乾隆年製》款the base incised with a six-character seal mark Height 9¼ in., 23.6 cm  There are three shallow minute nicks to the foot rim, otherwise in good condition. 足部見三處極微細淺磕。除此外，整體品相良好。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 New York, 8th May 1980, lot 228.Robert Chang, Hong Kong.Sotheby's Hong Kong, 20th May 1987, lot 510.J.J. Lally & Co., New York.紐約蘇富比1980年5月8日，編號228 張宗憲，香港 香港蘇富比1987年5月20日，編號510 藍理捷，紐約This vase is especially attractive for its lustrous 'teadust' glaze. This type of glaze was an early 18th century innovation, probably introduced in the last years of the Yongzheng Emperor's reign, which became particularly popular during the Qianlong period. The glaze is a high-fired crystalline one, with numerous iron and magnesium crystalline particles that have reacted with silicate acid suspended on the glaze surface. The precipitation of the yellow crystal against a dark green background produced what is known as chayemo or 'tea-leaf dust' glaze effect. Perfectly fired vessels in this glaze, such as the present vase, have many small stipples that make the glaze appear particularly rich and velvety to the touch. The shape, known as danping, 'gall bladder vase', is rarely found applied with a teadust glaze, however a small number of similar Qianlong period examples is known. Compare one sold at Christie's London, 23rd October 1967, lot 60; and another at Christie's Hong Kong, 30th May 2005, lot 1492. The form is also found applied with a rich aubergine glaze, such as one of the same size and proportions as the present example, but inscribed with the Qianlong mark in underglaze blue, in the Baur Collection, included in the exhibition A Millennium of Monochromes from the Great Tang to the High Qing. The Baur and the Zhuyuetang Collections, Geneva, 2019, cat. no. 111, and another sold in our Hong Kong rooms, 20th May 1987, lot 509.此膽瓶施以茶葉末釉，釉質濃潤、色澤亮麗，是為臻品。茶葉末釉應創於雍正末年，至乾隆年間備受追捧，大為盛行。茶葉末釉為高溫燒製的結晶釉的一種，釉中大量鐵及鎂晶體與硅酸產生化學反應，懸浮在釉面之上。黃結晶遍佈濃綠地，謂之茶葉末。燒成佳品如此瓶可見緻密晶點，釉色古樸沉穩，光潤柔淨。 此器形亦可稱作「膽瓶」，施茶葉末釉之膽瓶極為罕有，目前已知乾隆時期的近例僅數例。一例可見1967年10月23日售於倫敦佳士得，編號60；另一例可見2005年5月30日售於香港佳士得，編號1492。此器形亦有施以茄皮紫釉之例，與本品大小比例相同，但底部以青花書乾隆年款，如一例為鮑氏收藏，曾展於《千載霓霞：鮑氏東方藝術館及竹月堂藏唐至清一道釉》，日內瓦，2019年，編號111；另一例在1987年5月20日售於香港蘇富比，編號509。