V2420, Annam Cang-Thinh Thong-Bao (Jing-Sheng Tong-Bao), AD1793-1801.
Bronze, VF condition, please refer the picture.
The name of the coin is "Cang-Thinh Thong-Bao" in Vietnamese, or "Jing-Sheng Tong-Bao" in Chinese language.
Annam Tay Son Dynasty, Minted by Emperor Nguyen Quang Toan during AD 1793 to 1901.
The catalogue No 95.2 (Dr. R. Allan Barker's "The Historical Cash Coins of Viet Nam").
Diameter: 22 mm.
Weight: around 2.0 gram.