Edo period ( 1615-1868), 17th/18th century Comprising a heavy iron mokkogata plate with a rounded rim decorated with cresting waves in silver and gold overlays, one hitsu-ana plugged in gilt-metal; an iron mokkogata tsuba carved on the surface with a ring around the nakago-ana and linked tendrils at the rim; a thickly forged iron mokkogata plate with a raised rim decorated with archaistic characters and scrolling vines in gold and silver nunome-zogan Each with a wood tomobako storage box The first with kantei certificate no. 5375 issued by the Nihon Token Hozon Kai (Japanese Sword Preservation Society), dated September 19, 2004 2 7/8in (7.2cm) high, the largest