18th/19th centuryThe first, carved in shallow relief around the side with four taotie masks reserved on a dense ground of key-fret pattern, between two interlocking bands to the rims, 3cm (1 1/8in) diam.; the second, carved with two pairs of confronted archaistic dragons separated by shou roundels, all reserved on a dense key-fret ground, 2.7cm (1in) diam. (2).