Unsigned attributed to OUNIN
Round shape, Iron ground, INOME openwork, Hammered surface, Brass inlay, Contoured square Mimi edge
mid-Muromachi period
88.7mm x 87.7mm 2.0mm thick (Mimi) / 2.5mm thick (Seppa-dai)
custom-made paulownia box made to measure
NBTHK(Tokubetsu Hozon) certificate