Previously sold at Sotheby's Hong Kong, 20 May 1986, lot 83.
For the Song prototype compare the Southern Song guanyao vase of very similar size and form in the British Museum, illustrated in Oriental Ceramics, The World's Great Collection, vol. 5, 1981, col. pl. 24.
A Qianlong-marked vase of the same size and form, but covered with a tea-dust glaze, is illustrated in The Baur Collection, Geneva, 1972, vol. III, no. A392, together with a slightly smaller 'clair-de-lune' vase with Kangxi mark, no. 317.