1986 Chinese Historical Figures Silver Set

司馬遷

Sima Qian (145 - 87 BC) Han Dynasty

Chinese Historian

蔡倫
Cai Lun (50 AD - 121) Eastern Han Dynasty
Inventor of paper and paper-making process

張衡
Zhang Heng (78 - 139) Eastern Han Dynasty
Inventor of Seismometer 

祖沖之
Zu Chong Zhi (429 - 500) Liu Song & Southern Qi Dynasty
Mathematician and Astronomer