Lot Essay
For the artist see Robert E. Haynes, The Index of Japanese Sword Fittings and Associated Artists, (Ellwangen, 2001), 3 volumes, p.2236, no.11429 (for the first); and p.2012-3, no.10188-93 (for the third)
For the signature see K. Kokubo, Shinsen Kinko Meikan, (Tokyo, 1993), p.172 (for the first); and p.238-9 (for the third)
For the signature see K. Kokubo, Shinsen Kinko Meikan, (Tokyo, 1993), p.172 (for the first); and p.238-9 (for the third)