It is rare to find flattened, cloud-form, ring-bearing handles on Yuan dynasty vases of this form. Similar ring-bearing handles, but of a flattened 'S'-shape, appear to more frequently occur on pear-shaped vases; see M. Medley, The Chinese Potter, New York, 1976, p. 187, fig. 138, and S.J. Vainker, Chinese Pottery and Porcelain: From Prehistory to Present, New York, 1991, p. 138, no. 101.
For a large jar also decorated with the 'three friends' and dated to the Yuan dynasty, see Mayuyama, Seventy Years, Tokyo, 1976, p. 230, no. 691.