This Qing China Jiaqing Tongbao 嘉慶通寶 (1796), well protected in plastic case, has Grade 85 accorded by Beijing Gongbo Historical Coins Authentication Co Ltd 北京公博古錢幣鑑定公司 (Detail is complete with few minor marks)

Diameter: 25.3mm

Thickness: 1.2mm

Weight: 3.8g 

Obverse Inscription: 嘉慶通寶 Jiaqing Tongbao

Reverse Inscription: Manchu scripts, translated as 寶桂局 in Chinese, the official mint operated in Guilin, Guangxi 

Case with Coin: 6cmx8cmx1cm, 30g