SIGNED SUIFU NO SHOSHIN SHIHO TEIKAN, TOBU (NI) OITE KOISHIGAWA OKAN KIZAMU, AND SEAL SHINSUI, 19TH CENTURY

For the artist see Robert E. Haynes, The Index of Japanese Sword Fittings and Associated Artists, (Ellwangen, 2001), 3 volumes, p.1895, no.09521
Ogawa Teikan (Sadamoto) (1828-1898) worked in Edo, he became a retainer of the Mito Tokugawa and of the Bakufu