Chaojing Mint, Nanjing, Jiangsu,China (circa 1628-1644) Gongqing Mint, China (circa 1628-1644) Jiangning (Nanjing) Mint,modern-day Nanjing, Jiangsu, China (circa 1361-1670) Ministry of Public Works Mint, New Branch (工部局), Nanjing, China (1599-1644) Ministry of Public Works Mint(工部局), Nanjing, China (1361-1726) Ministry of Revenue Mint (戶部局),Nanjing, China (1599-1644) Tongguanshan Mint, modern-day District de Tongguanshan, Anhui, China (circa 1628-1644)
Mintage
ND
(1630-1644) - Hartill#20.302: Tong with one dot - ND
(1630-1644) - Hartill#20.319: Tong with two dots (looks like three dots) -