A SMALL NORTHERN BLACK- AND BROWN-GLAZED TEA BOWL Song dynastyFROM A PRIVATE PHILADELPHIA COLLECTIONA SMALL NORTHERN BLACK- AND BROWN-GLAZED TEA BOWLSong dynastyWith gently rounded sides rising to a flaring lip, covered inside and out a rich russet brown glaze mottled with very dark brown verging on black, the glaze pulled thin at the lip rim, the short foot neatly pared showing buff stoneware body. 4 15/16in (11.9cm) diam宋 北方醬釉黑斑茶碗Provenance:John Sparks, London, October 1958From the Collection of Baron Cunliffe (1899-1963), no. T48Bonhams London, 11 November 2002, lot 35來源：倫敦古董商 John Sparks，1958 年 10 月Baron Cunliffe (1899-1963)舊藏，藏品編號 T48倫敦邦瀚斯，2002 年 11 月 11 日， 拍品編號 35The interior decoration of the present example is unusual, but closely related to the classic 'partridge-feather' pattern in northern black and brown ware. Compare the two bowls of very similar form, glazed brown on the exterior with black and brown 'partridge-feather' mottles on the interior, illustrated by Mowry, Hare's Fur, Tortoiseshell, and Partridge Feathers: Chinese Brown- and Black-Glazed Ceramics, 400-1400, Cambridge, 1996, pp. 142-144, no. 38a&b, noting similar examples were excavated from the Guantai kilns in Hebei province.