Mokume-kin (also known as mokume-gane or mokume-do) translates to “wood-grain metal” in English). This metal craft is produced in Akita City, Akita Prefecture. Invented approximately 400 years ago, in the early Edo period, this craft involves fusing different metals such as gold, silver, and copper with heat and pressure, then molding and carving them to create a wood grain-like pattern on the surface.