K2554, Kai-Yuan Tong-Bao Coin (Reserve Yan Mint), China AD 845.
Very Fine condition. Please refer the picture.
K'ai-Yuan Tong-Bao(or called "Kai-Yuan Tong-Bao") is one of the classic coin of China. These coins were minted in China Tang Dynasty by several different emperors (AD 758 to 900) in large quantity, and also circulated in other country like Korea, Japan, Annam for more than 1000 years. Ordinary size one cash coins.
Reverse Side: Top Yan (means minted in Yanzhou Mint, in Shandong Province).
Catalogue No: H14.90(David Hartill's), FD724(Fisher Ding's), S391(Schjoth's).
Weight: around 3 to 4 gram per coin.
Size: around 22 mm in diameter.