An Awataguchi katana in mounts Edo period (1615-1868), circa 1660 Sugata (configuration): honzukuri, iorimune, chu-gissaki, toriizori Kitae (forging pattern): tight ko-itame hada with jinie Hamon (tempering pattern): choji midare mixed with ko-choji midare in nie with ashi and yo Boshi (tip): ko-maru Nakago (tang): suriage with kiri file marks, three holes, signed Awataguchi Omi no kami Tadatsuna Habaki (collar): one-piece, shakudo Nagasa (length from tip to beginning of tang): 27 1/2in (69.8cm) Motohaba (width at start of tempered edge): 1 1/4in (3.2cm) Sakihaba (width before tip): 7/8in (2.2cm) Koshira-e (mounts): comprising a black-lacquer mokumeji saya fitted with shakudo ishimeji kojiri and koiguchi, the tsuka wrapped in blue silk over same and fitted with shakudo nanako fuchigashira decorated with a spider on a web in gold and shakudo takazogan, signed Tsuji Tadaatsu, and rectangular plate shakudo migakiji menuki, the iron sukashi tsuba carved with leaves with gold dew drops With Hozon Tosogu (Sword Fitting Worthy of Preservation) certificate no. 3016882 issued by the Nihon Bijutsu Token Hozon Kyokai (Society for the Preservation of the Japanese Art Sword), dated March 15, 2018