Take a look at treasures of Nantong museums
Rosewood abacus
The rosewood abacus at the China Abacus Museum. [Photo/ntfabu.com]
The rosewood abacus at the China Abacus Museum is the largest of its kind in the world. With a silky texture and metallic luster, the 2.6-metric-ton abacus has an estimated value of 300 million yuan ($44.85 million)