https://www.aoijapan.com/tachi-:-unknown-signature-ko-naminohiranbthk-tokubetsu-hozon-token/
A recently added piece by aoi-art. Nice curvature, koshi-sori, ubu and originally signed but signature is too worn down to read. Usual big name attribution by honami nisshu but I have 2 concerns, one the hamon is really close to the edge. Is it something common in the school or is it just worn down due to polishing. Second, there is a piece of paper that was posted in the listing for the sword. I'm not sure what it says or what it's is for. Any information is appreciated.