Previously sold in New York, 24 April 1975, lot 364.
Yongzheng bowls of this pattern have been published, including one previously from the Constantinidi Collection, illustrated by S. Jenyns, Later Chinese Porcelain, 1971, pl. LXIX, no. 3; one in the Beijing Palace Museum, illustrated in Kangxi Yongzheng Qianlong, 1989, p. 238, pl. 67; and various others were sold at auction, such as the slightly smaller pair (12.1 cm. diam.) which sold in London, 7 June 1994, lot 390.
As with the yellow-ground bowl embellished with cranes and emblems in a variety of coloured enamels (lot 600 in the present sale), this group of bat bowls is unusual in that it departs from the usual convention of only having green-enamelled decorative elements on a yellow ground. Vessels with various coloured enamels on yellow ground are referred in the imperial archives as 'a new category of wucai', an innovation of the Yongzheng period. In both cases, however, the designs were incised for crisper detail.