Chinese Lianszhu Culture Cong Vessels

Five Chinese Lianszhu culture (3300- 2200 BCE) ritual implements (one damaged), "Cong (pronounced tsong) are unusual jade objects found among the graves of the Liangzhu culture in the eastern province of Jiangsu, around Lake Tai, near present-day Shanghai. They are some of the most enigmatic objects in ancient Chinese culture. They are the principle jade objects found in Liangzhu culture sites. Many interpretations have been given. Cong are found in the tombs of people who must have held some important position or rank within the society" see Khan Academy website, lengths 1 5/8" to 3", ex Iris Love (she worked one season on an excavation in China)