Date: Warring States Period (475-221 BC)
Provenance: Unearthed from the Zhongzhou ditch, Luoyang, Henan province, 1963
Measurements: Height: 15 cm

The bronze dun is an ancient food container for storing grains such as millet, wheat, and rice. It evolved by combining the forms of a ding cauldron and gui food container and was also utilized as a ritual vessel. It emerged in the Spring and Autumn Period (770-476 BC) and remained prevalent until the Warring States Period. The coiling serpent snake-patterned bronze dun, a Warring States artifact, stands at a total height of 15 centimeters. Unearthed in 1963 from the Zhongzhou ditch in Luoyang, Henan province, it reflects significant advancements in the casting of iron and bronze artifacts, as well as the production of lacquerware and silk weaving during the Warring States Period. The delicate and intricate decorative patterns indicate that the bronze casting technology in the Central Plain region had reached a high level during that period.