Coin Item Number: Edz3980 from the MOA: University of British Columbia
Round, square hole in centre, outer rim on both sides, inner rim on reverse only, 2 characters and dots on obverse. Wu zhu (right-left), meaning 5 zhu, in seal script Chinese characters, dots above central hole on obverse. Reverse has 2 dots right and top-right, which may be unintentional. Outer rim is filed down to a very thin width.
Normal sized circulating coin. An illicit minting