Compare similarly enameled bottle vases, without the flared rim: a pair sold in our London rooms, 7th November 1946, lot 71, and another sold at Christie's London, 6th December 1993, lot 124. An example of yenyen form and with a band of scrolls at the footring, illustrated in R.L. Hobson, The Later Ceramic Wares of China, New York, 1925, pl. LIX, fig. 2, was exhibited at the International Exhibition of Chinese Art, Royal Academy, London, 1935-36, cat. no. 2266, and sold twice in our London rooms: 25th June 1936, lot 91, and 5th July 1977, lot 257. Another was exhibited in An Exhibition of Important Chinese Ceramics from the Robert Chang Collection, Christie's London, 1993, cat. no. 34, and sold at Christie's Hong Kong, 2nd November 1999, lot 530, and again in the same rooms, 27th May 2008, lot 1765. A further pair sold in these rooms, 1st December 1992, lot 349. See also a baluster-form example in the Victoria & Albert Museum, London, coll. no. C.1114-1910.