A rare Chinese Yixing rectangular teapot and cover 20th century

A rare Chinese Yixing rectangular teapot and cover 20th century, evenly glazed with a rich emerald green, the lid and base marked, probably for Xiang Zhon, 15cm. (2) Provenance: from the collection of John and Helen Bargolini. With paper label, exhibited Hoghton Tower, Exhibition of Chinese Tea Ware, Yixing Purple Clay, no.17.