L. 27 1/16 in. (68.8 cm); L. of blade 24 5/16 in. (61.8 cm); L. of cutting edge 19 7/8 in. (50.5 cm); D. of curvature 9/16 in. (1.45 cm); L. of scabbard 19 3/4 in. (50.2 cm); knife (c); L. of blade 7 11/16 in. (19.5 cm); Wt. 0.4 oz. (11.3 g)
The Howard Mansfield Collection, Gift of Howard Mansfield, 1936
This is the only known complete set of daishō mountings (paired with 36.120.417a, b) by Iwamoto Konkan, one of the most famous makers of sword fittings in the eighteenth century. The artist's inscription identifies the patron as Iwata Takanori and the design as the Six Tama Rivers.
Inscription: Inscribed on the cord knob (kurigata): 弘直（花押） (Hironao (kaō)); on the sword guard (tsuba): 岩本昆寛（花押） (Iwamoto Konkan (kaō)).
New York. The Metropolitan Museum of Art. "Asian Art," April, 1987–November, 1989.
Grancsay, Stephen V., and Alan Priest. "Japanese Metalwork, Nō Masks, and Textiles in the Howard Mansfield Collection." The Metropolitan Museum of Art Bulletin 32, no. 10 (October 1937). p. 229, fig. 1.
Grancsay, Stephen V. "The Japanese Armor Gallery in the Metropolitan Museum of Art." The Connoisseur 148 (September 1961). p. 17, ill.
Boger, Batterson H. The Traditional Arts of Japan: A Complete Illustrated Guide. Garden City, N.Y.: Doubleday, 1964. p. 118, ill.
Nickel, Helmut. "Arms and Armor from the Permanent Collection." The Metropolitan Museum of Art Bulletin 49, no. 1 (Summer, 1991). pp. 62–64, ill.