QIANLONG SEAL MARK IN UNDERGLAZE BLUE AND OF THE PERIOD (1736-1795)

A Qianlong mark-and-period vase of this rare form and of similar size and covered in a Ru-type glaze is illustrated in Treasures from Japan: Masterpieces of Chinese Ceramics from Yamanaka & Co., Ltd. and other Japanese Collections, Beijing, 2020, pp. 244-5, no. 97.