Two ko kinko tsubaEdo period (1615-1868), 17th/18th century
The first, a shakudo oval plate tsuba carved on the surface with crashing waves and decorated with open and closed fans in takabori with gold hirazogan highlights; the second, a circular yamagane sukashi tsuba pierce carved with an auspicious character
Each with a wood tombako storage box
The first with Hozon Tosogu (Sword Fitting Worthy of Preservation) certificate no. 4010723, issued by the Nihon Bijutsu Token Hozon Kyokai (Society for the Preservation of the Japanese Art Sword), dated November 8, 2016
3 1/4in (8.3cm) diameter, the largest