銀を使用した箔。他の素材に比べると銀は変色しやすいですが、何よりもそれが本物の銀である証拠であり、また経年変化を楽しむ日本の高い美意識を感じることができる素材です。

It is a leaf made of silver. Silver is easier to discolor than other materials. However, this is the evidence that it is a real silver. It also is a material that may be able to see the high aesthetics of Japan which they tend to love “aging.”