Diameter: 3.1 Height: 2.3 cm Inner diameter: 22.3mm This piece of wrench is the texture of Khotanese white jade seed material, jade is delicate and excellent oil. One end is slightly convex, the other end is concave, the wrench wall is thicker, polished and rounded, and the polish is delicate. The convex end is inscribed with the inscription "Daoguang has been unitary and has a Hengtang system". The arrangement is neat and rigorous, quite ancient. The owner of Xingyou Hengtang is Zaiquan, who is a famous royal collector in the Daoguang Xianfeng period, especially in the construction office to customize bamboo, wood, tooth horn stone and jade literary pieces and porcelain, and with inscriptions or seals such as "Xingyou Hengtang", "Dingfu Qing Play", "Xingyou Hengtang Master System" and other inscriptions or seals. The utensils are skillful and are all excellent, with the style of the court.
