DARK-BROWN GLAZED WIDE-MOUTHED RIBBED JAR, HENAN OR HEBEI, PROVINCE, NORTHERN SONG-JIN DYNASTY the tall straight neck with a rounded rim and strap handles, the ovoid body with a continuous band of sharply-defined vertical ribs, the rich dark caramel glaze stopping short of the slip-covered lower body and foot, 23.5cm high Provenance: Christie's London, 16th November 1998, lot 200. The Oriental Art Fund London, 9th June 2000. Note: this vessel belongs to a group of related jars which all have a continuous band of vertical ribs on the lower body - sometimes evenly spaced and sometimes grouped in clusters. They are thought to have been produced in Henan or Hebei provinces. For a very similar example see Hare's Fur, Tortoiseshell and Partridge Feathers: Chinese Brown and Black Glazed Ceramics 400-1400, by Robert Mowry, New York, 1996, p.174-177, no.61. Another related jar from the Victoria and Albert Museum, formerly in the Eumorfopoulos Collection, illustrated in Song Dynasty Ceramics by Rose Kerr, London 2004, p. 80, no. 80. For similar examples see - the Collection of James E. Breece III sold by Christie's New York, 18-19th September 2014, lot 765; and another from a private Japanese collection with Mayuyama provenance sold by Sotheby's Hong Kong, 1st June 2015, lot 611. See also an example from the Mayer Collection, Christies London, 25th June 1974, lot 51; and a jar sold in the same salerooms on 15th June 1998, lot 81.