noun
antique silver finish
Refers to a surface treatment that gives silver an aged, tarnished, or antique appearance, often used in crafts, jewelry, or decorative items.
この指輪は銀古美加工が施されている。
This ring has an antique silver finish applied.
銀古美の風合いが好きで、アクセサリーを集めている。
I like the texture of antique silver finish and collect accessories with it.
銀 is the general term for silver; 銀古美 is a specific finish applied to silver.
Compound of 銀 (gin, 'silver') and 古美 (furubi, 'antique look, aged beauty'). The exact origin is uncertain, but it likely arose in craft or jewelry contexts to describe an intentionally aged silver surface.