Coin Item Number: Edz2552 from the MOA: University of British Columbia
Round, 4 sided hole in centre, rim around outer edge and centre hole, obverse 4 characters, dot on reverse. Chongzhen tongbao (top-bottom-right-left) in Chinese characters on obverse; dot top on reverse. Flaws in fields- like small dots; rim pits.
Normal sized circulating coin. Light weight, but officially made