China
People's Republic "Discoveries Abacus and Commemorative Silver Coin" 5 Yuan Set 1993 UNC,
An intriguing and unique set celebrating Chinese inventions and discoveries. The set comes with a small metal abacus, and a set of 5 x 5 Yuan including:
1) "Invention of the Stirrup," KM490.
2) "Invention of the Umbrella," KM491.
3) "The Terracotta Army," KM492.
4) "Chin-Yin Yang", KM489.
5) "Mathematical Definition of Zero," KM488.
Sold as is, no returns.
HID02901242017
Estimate: 150-250 USD