A Tortoise-Shell-Glazed Stoneware Bowl, Song Dynasty (960-1279 AD). Photo Stockholm Auktionsverk

the sides rising from the knife-pared foot to the rounded rim and is covered on the in and outside with a dark brown glaze liberally splashed with a translucent yellow-brown glaze in imitation of mottled tortoiseshell, the glaze stopping just short of the foot to expose the stoneware, height 15.5 cm, diameter 11 cm; wear. Estimate SEK 40 000-45 000 (€ 4 850-5 450)

Thermoluminescence Analysis Report from Laboratory Ralf Kotalla, 3 September 2012, (1000 years +/- 20 %), 

PROVENANCE: Swedish private Collection