Coin

About this object

History of use

Normal sized circulating coin

Physical description

Round, 4 sided hole in centre, rim around outer edge and centre hole, obverse 4 characters, 1 character on reverse. Tianqi tongbao (top-bottom-right-left) in Chinese character on obverse; yun top (mintmark) in Chinese characters on reverse . File marks; extra metal in centre hole; rim pits.