Cast brass cash coins of the following emperors:
1. Dao Guang (1821-1851)
2. Qian Long (1736-1795)
3. Jia Qing (1796-1821)
As to mints, wait for somebody else, who can actually read Chinese.
I collect coins and tokens which circulated in Africa from 18th century to 2000. I sell about 7000 illustrated world coins from http://www.avscoins.com.
