Rai Kunitoshi, who worked in Kyōto, was among the most famous swordsmiths of the late thirteenth to early fourteenth century. This dagger, one of his masterpieces, exemplifies his best-known blade-making style.
Signature: Signed: RAI KUNITOSHI.
Elizabeth Kuriyama, Yokosuka, Japan (until 1946; her gift to Robert Izard); Mr. and Mrs. Robert Andrews Izard, Rye, New York (1946–1991; their gift to MMA).
Yamanaka, Albert. "The Rai School Swordsmiths of Yamashiro Province." Bushido. 3, no. 1 (1981). pp. 39–48.
Yamanaka, Albert. "Results of the Vol. 2 No. 4 Mystery Blade Contest." Bushido. 3, no. 1 (1981). pp. 36–37.
Yamanaka, Albert. "Rai School Genealogy Chart." Bushido. 3, no. 1 (1981). p. 38.
Ogawa, Morihiro. "Recent Acquisitions, A Selection: 1991–1992." The Metropolitan Museum of Art Bulletin 50, no. 2 (Autumn 1992). p. 89, ill.
Pyhrr, Stuart W., Donald J. La Rocca, and Morihiro Ogawa. Arms and Armor: Notable Acquisitions, 1991–2002. New York: The Metropolitan Museum of Art, 2002. p. 54, no. 51, ill.