Coin Item Number: Edz2555 from the MOA: University of British Columbia
Round, 4 sided hole in centre, rim around outer edge and centre hole, obverse 4 characters, no writing on reverse. Chongzhen tongbao (top-bottom-right-left) in Chinese characters on obverse; raised area in field top; accidental dot top on reverse. File marks; centre rim width not even; rim pits, flaws.
Normal sized circulating coin