Glass vases of this bottle shape, with Qianlong marks, were made in various colors, in both opaque and transparent glass. Several in the Andrew K. F. Lee Collection are illustrated in Elegance of Radiance: Grandeur in Qing Glass, The Art Museum, The Chinese University of Hong Kong, 2000, pp. 100-7, nos. 9-12. An opaque turquoise example in the Robert H. Clague Collection is illustrated by C. Brown and D. Rabiner in Chinese Glass of the Qing Dynasty, 1644-1911, pp. 36-37, no. 35.