Nishigaki family, 18th century In the form of a formalised crane, its wings spread to form a protective rim, over two asymmetric udenuki-ana, unsigned; with a wood storage box.
8cm (3 1/8in). (2).
鐔 舞鶴透 無銘（西垣派） 18世紀
For a similar example in copper, by Nishigaki Kanshiro I, see Ito Mitsuru, Nishigaki: Higo no kinko Nishigaki Kanshiro to sono sakuhin (Nishigaki: Higo metal worker Nishigaki Kanshiro and his works), no.62.
For another example in iron by Hirata Hikozo I, see Masayuki Sasano, Japanese Sword Guard Masterpieces from The Sasano Collection, part one, no.240.