A LARGE BLACK-GLAZED WHITE-RIBBED JAR WITH TWO HANDLESJIN DYNASTY, 12TH-13TH CENTURYSet on the shoulder with two handles each molded with the character Zhang within a square, the swelling jar rises to a short neck and lipped rim and is decorated with alternating gro of two and four ribs in raised white slip, all covered under a lustrous blackish-amber glaze.11 1⁄2 in. (29.2 cm.) high, Japanese wood box