Bowls of this pattern with Yongzheng reign marks are rare, however, there are several examples which have been published. Cf. one from the McElney collection included in the Art Gallery of Greater Victoria Exhibition of Porcelain of High Qing, 1983, Catalogue, no. 19; another included in the Hong Kong O.C.S., Exhibition of Chinese Blue and White Porcelain, 1975, Catalogue, no. 107.