The bowl is thickly potted with deep rounded sides rising from a low recessed base. It is covered with a thick even glaze of ebony colour suffused with a very fine network of crackles, thinning to brown near the mouth rim and ending above the exposed buff biscuit foot, box.

Note: Jizhou black-glazed tea bowls are extremely rare. Compare to a similar Jizhou black-glazed bowl bound with a gilt-metal mount sold at Christie’s Hong Kong, 2 December 2015, lot 3175.

A very rare Jizhou black-glazed tea bowl, Southern Song dynasty (1127-1279); 4 7/8 in. (12.2 cm.) diam. Sold for HK$1,240,000 ($160,749) at Christie’s Hong Kong, 2 December 2015, lot 3175.

Cf. my post: A very rare Jizhou black-glazed tea bowl, Southern Song dynasty (1127-1279)