A katana in mounts Edo period (1615-1868), dated 1773 Honzukuri, iorimune, chu-gissaki, toriizori configuration forged in ko-itame hada with a suguha tempered edge in nie, the suriage tang with kiri file marks, two holes and signed Ozaki Suketaka kore o age and inscribed Komei Hizen no kuni Tadayoshi and dated An'ei ninen shigatsu (Fourth month of 1773), with a one-piece copper habaki, 31 1/8in (79.1cm) long In a 19th-century koshirae comprising a lacquer saya decorated with aogai and fitted with an iron kojiri with a dragon and tiger in takabori with gold highlights, and a silvered kurikata and koiguchi, the tsuka wrapped in white silk around same, mounted with iron tsuchimeji fuchi-gashira decorated with rice in gold takazogan, signed Kiyotsugu, and shakudo and gold menuki formed as Buddhist ken, the Kyo-sukashi tsuba pierced with a paulownia flower