A pair of Chinese Yixing square-section flasks 20th century

A pair of Chinese Yixing square-section flasks 20th century, decorated with a geometric thunder pattern, seal marks probably for Guizhen, 17.7cm. (2) Provenance: from the collection of John and Helen Bargolini. With paper labels, exhibited Hoghton Tower, Exhibition of Chinese Tea Ware, Yixing Purple Clay, no.112.