The seamless copperware is created from a piece of copper sheet being hammered constantly. The oxidization process for coloring the surface is the world only technique and practiced here. The products have been recognized worldwide since 1873 when it was first sent to the Vienna world exposition. You can visit a factory designated as a cultural heritage below to see the craftsmen at work.
Tsubame-doki Kogei Kumiai c/o Gyokusendo
2-2-21 Chuo-Dori, Tsubame-shi, NIIGATA 959-1244
TEL : 0256-62-2015 FAX: 0256-64-5945