Katana in Shirasaya, with Koshirae (17th NBTHK Juyo paper) Signature : Mumei (Den Kanenaga) hukoto: Josaku: Owazamono (We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku) This Mumei (Kanenaga) belongs to Saijyo ...