Northern Song dynasty, 11th/12th century The first a finely potted globular jar with a cover both bearing and even blue-tinged translucent glaze; the second a warming bowl with straight sides molded with a network of elegantly pointed leaves and covered in and out with a pale blue-tinged glaze except for the rim which shows traces of a former metal band, lacking a cover. 3 1/2in (8.8cm) with cover; 5 1/8in (13cm) diam (3).