Although both blades are by Naotane, that of the long sword (katana) is made in the Bizen style, while that of the short sword (wakizashi) is made in the Sōshū style. The engraving on both is attributed to Yoshitane, who decorated many of Naotane's blades.
Inscription: Inscribed on the tang of the blade, on the obverse: 大慶直胤（花押） (Taikei Naotane (kaō)); on the reverse: 天保十年仲春 (Tenpō jū-nen chūshun) (Tenth year of Tenpō , second month); on the sword guard (tsuba): 長州住幸仲作 (Chōshū jū Yukinaka saku) (Made by Yukinaka, residing in Nagato Province [present-day Yamaguchi Prefecture]).
Brayton C. Ives, New York (until 1891; his sale, American Art Galleries, New York, March 9, 1891 and following days, to Walters); W. T. Walters, New York (1891; his gift to MMA).
Tokyo. Fujishiro Okisato. "Conservation loan," November 1, 2008–June 1, 2009.
Nickel, Helmut. "Arms and Armor from the Permanent Collection." The Metropolitan Museum of Art Bulletin 49, no. 1 (Summer, 1991). pp. 62, 64. ill.