Compare the present vase to a similarly shaped vase of identical height, with an incised Qianlong mark, sold at Christie’s New York, 19 September 2006, lot 370; and a nearly identical flambé-glazed vase of the same height, also bearing an incised Qianlong seal mark, sold at Christie’s New York, 15 September 2011, lot 1593. A slightly smaller vase (16.9 cm) from the Qianlong period was sold at Christie’s Hong Kong, 1 June 2016, lot 3335. A slightly smaller example (19.7 cm.) with a bluish-purple flambé glaze in the Victoria and Albert Museum is illustrated by Rose Kerr, Chinese Ceramics - Porcelain of the Qing Dynasty 1644-1911, Victoria and Albert Museum, London, 1998, no. 3.