Bronze Mirrors Hampyeong Chopyo-ri , Bronze age: diameter 15.6cm The mirrors which were found in Korea has 2~3 knobs on the slightly upper places of the centre while Chinese mirror has a knob. Depending on decoration, mirrors are divided into ¡®Bronze mirror with coarse lines on the back¡¯ and ¡®Bronze mirror with fine linear design¡¯. ¡®Bronze mirror with coarse lines on the back¡¯ has simple geometric shapes with straight line. The straight lines becomes thinner and the number of that increased and ¡®Bronze mirror with coarse lines on the back¡¯ became ¡®Bronze mirror with fine linear design¡¯. Depending of its parts, ¡®Bronze mirror with fine linear design¡¯ has different patterns. Various concentric circles and triangular pattern with deviant crease lines are the representative pattern. Through the shape of patterns, we can see that draftsmanshiping at this time was highly developed. Also moulds were made to make detailed patterns on the mirror. The thickness of the patterns were so thin that it might be difficult to resppear the skill today and it means that the skill of making bronze objects was highly developed in those days. The bronze mirror was used for not only general use as a mirror but also shamanist purpose to show the shamanist¡¯s power authority.