Imperial Fish Bowl, Wanli mark and period (1573-1619), H.12 x Dia.15-1/2 in., Doucai ware Porcelain with underglaze blue and overglaze enamel decor, China, 16th - 17th century, Large and sturdily potted with a thick rim, this deep bowl probably functioned as an imperial fish tank (kang) or possibly as a jardinière for potted plants. The Ming period is distinguished in ceramic history for the introduction of new in-glaze color combinations and the use of overglaze enamels. The terms wu ts'ai (five-color) and tou-ts'ai (joined colors), were used loosely to mean 'polychrome' or 'multiple-color ware.' A tou-ts'ai pattern such as this one has its overglaze colors applied to a design outlined in underglaze cobalt oxide blue. Imperial marked porcelains indicate that Tou-ts'ai wares were first manufactured during the Xuande reign (1426-35). Decorated with a magnificent imperial five-claw dragon, this bowl bears a six-character Wanli reign mark (1573-1619), indicating that it was made on imperi