Compare with an 18th century imitation Junyao vase of the same form in the Baur Collection illustrated by J. Ayres, Chinese Ceramics in the Baur Collection, vol. 2, Geneva, 1999, no. 263. A similar Yongzheng-marked Jun-type vase was sold at Sotheby's Hong Kong, 30 October 2002, lot 230 and illustrated in Sotheby's Thirty Years in Hong Kong, Hong Kong, 2003, no. 141.