This celadon mould comes from the Northern Song period. It remains unclear what this type of mould was used for. Northern Celadons, also known as Yaozhou wares were produced in Shaanxi province for the domestic market and were the forerunners of the famous Longquan celadons from southeast China.Celadon is a French term taken from the character of a shepherd in a 17th century play, who wore a green costume.The term refers to green-glazed wares, where naturally occurring iron oxide reacts to the lack of oxygen during firing in the glaze by turning green.
