Japanese Taisho Solid Silver Okimono - Baby Rat. Taisho period (1912-1924) Japanese solid silver okimono of a baby rat. It has magnificent details over the body,face,head,ears and tail. It is made of solid silver, with a .950 silver mark over the bottom. Please see pictures. It is in excellent condition, it has original patina. It has no dings,dents,losses or restorations. It is 2 ⅝” long x 1 ¼” tall x 1 ½” deep