Coin

Normal sized circulating coin

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. Qianlong tongbao (top-bottom-right-left) in Chinese characters are on the obverse; boo yuwan left-right (mintmark) in Manchu are on the reverse. Edge of rim is flat at the bottom-left; extra metal is inside the centre hole.