Coin Item Number: Edz2259 from the MOA: University of British Columbia
Round coin with a four-sided hole in the centre, and a rim around the outer edge and the centre hole. The obverse has four characters, and the reverse has two characters. Daoguang tongbao (top-bottom-right-left) in Chinese characters are on the obverse; boo nan left-right (mintmark) in Manchu are on the reverse. Extra metal is on the outer and inner rims; part of the inner rim is missing.
Small sized circulating coin