The present vase is one of a pair previously sold at Christie's London, 25 November 1974, lot 212, and sold again at Sotheby's Hong Kong, 29 November 1976, lot 579.
The inspiration of the form is undoubtedly from archaic bronze hu-shaped vessels particularly those dated to the Western Zhou period (1100-771 BC) cast with a pair of pierced slots above the splayed foot, cf. a wine vessel dated to the mid-Western Zhou period, excavated in 1975 from Baijia cun in Shaanxi province, illustrated in Zhongguo Wenwu Jinghua Dacidian, qingtong juan, Shanghai, 1995, p. 134, no. 464.
A comparable Qianlong-marked example of this shape and pattern is in the Beijing Palace Museum collection, illustrated in Kangxi Yongzheng Qianlong, Hong Kong, 1985, p. 442, pl. 124.