Coin Item Number: Edz2894 from the MOA: University of British Columbia
Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, character and dot on reverse. Kaiyuan tongbao (top-bottom-right-left) in orthodox Chinese characters on obverse; yue (bottom), mintmark, Chinese character, dot (left-top) on reverse. Rounded corners of centre hole.
Normal sized circulating coin