Left: Bronze Pick-axe, early Shang Dynasty (c. 16th-14th centuries BC), unearthed at Erligang, Zhengzhou, Henan Province, 1953.
Middle: Bronze Spade, Late Shang Dynasty (c. 14th-11th centuries BC), unearthed at Dasikong, Anyang, Henan Province, 1953.
Right: Bronze Spades, Late Shang Dynasty (c. 14th-11th centuries BC), unearthed from tomb of Fu Hao at Yinxu, Anyang, Henan Province, 1976.
They are exhibited in the section of Exhibition on life, production in Xia, Shang and Western Zhou dynasties, an exhibition of Ancient China in the National Museum of China. [Photo by Xu Lin / China.org.cn]