This type of decor plates are basically used for gates/doors of castles or samurai's houses. They have decorated wood gates/doors, roof, bridge handrails etc. with these plates; you can still see them in shrines, temples or traditional mansions.
The plates are handcrafted by experienced artisans using traditional design and technology. The plates are made of brass, so they are durable enough to keep its beauty for a long time. You can also enjoy aging of the material.