Archaic Chinese round jade carving, dated from the Warring States Period (475 - 221 BC), with a white calcification covering the entire surface which is known as "chicken bone". This white calcification is due to the jade being burned in very ancient rituals revolving around life and death. Both sides of the jade are carved with archaic spiral patterns and two single rings.

The 250 years between 475 and 221 BC is called the Warring States Period because the region of the Zhou Dynasty was divided between 8 states. These states had frequent wars until 221 BC when Qin conquered them all. The fighting was sometimes fierce.

Size: 2" W x 1/8" thick