A Yamashiro katana
By Osaka Yoshimichi, Edo period (17th century)
Sugata (configuration): hon-zukuri, iori-mune, torii-zori, chu-gissaki
Kitae (forging pattern): fine ko-itame
Hamon (tempering pattern): sudare-ba with long lines of nie and changing to ko-midare near the tip on the omote with sunagashi, Tobi-yaki and yaki-dashi
Boshi (tip): ko-maru
Nakago (tang): ubu, iri-yamagata, one hole and katte-sagari file marks, signed Tamba (no) kami Yoshimichi
Habaki (collar): one-piece, gold-foil
Nagasa (length from tip to beginning of tang): 27 3/4in (70.3cm)
Motohaba (width at start of tempered edge): 1 1/8in (2.9cm)
Sakihaba (width before tip): 3/4in (1.9cm)

19th-century koshirae comprising a brownish red-lacquer saya with transverse spiral ridges mounted with silvered-copper kurikata and kojiri in an ishime finish; tsuka mounted with shakudo migaki-ji fuchi-gashira decorated with fans, pines and geometric patterns in iroe hira-zogan and shakudo and gold menuki carved as sprays of flowers; the Choshu iron sukashi tsuba carved with chrysanthemum leaves and flowers