Kinpun-Mei (金粉銘) – “Gold Powder Signature”

• A signature written in gold powder, often found on ceremonial, high-status, or presentation swords.
• Sometimes used to enhance an original signature or reinforce an attribution.
• Example: 金粉銘 宗近 (Kinpun-Mei Munechika) – “Gold powder inscription attributing the sword to Munechika.”