Lot 232. A rare 'Jizhou' 'Tiger Skin' tea bowl, Song dynasty; 12cm., 4 3/4 in. Estimate 8,000 — 12,000 GBP. Lot sold 9,375 GBP. © Sotheby's 2013.

the shallow rounded sides rising from a short foot to a straight rim, covered overall with a dark chocolate brown glaze with variegated buff streaks to the interior, the glaze falling short of the foot on the exterior to reveal the light buff body

Note: For a similarly glazed Jizhou bowl, see one illustrated in Porcelain of the Song Dynasty (II), The Complete Collection of Treasures of the Palace Museum, Hong Kong, 1996, pp.260-261. 

Sotheby's. Fine Chinese Ceramics and Works of Art, London, 06 Nov 2013