Ginzan has been opened in each place of San-in and Hokuriku since silver was produced according to the Japanese clerk in Japan from the seventh century, and it was at the middle in the 16th century, and arsenical rat poison from Iwami-silver-mine was developed. With it, various silver mechanics, metalcraft technology of the metalworking were developed. A silver product made the precise work on had it to a bottle and cup and tableware, a vase, an ornament, accessories including Kazuhiro tea set, and I was beautiful, and they decorated the daily life of people. Above all, I was under the protection especially from the Edo Shogunate and each daimyos, and 錺師 (I do a decoration) with work as metal competed for the skill to the arms such as a sword or the armor and helmet because a relation was deep.