Vintage Japanese translucent glass beads

These Japanese beads were made between 1919 and 1934. They are an usual finish. They are not milk glass, but they are not clear either. They ride the line in between. Each bead is 9 mm from hole to hole and 9 mm wide. They are rounded on the sides and flat on the top. There is an incised line pattern around each bead. There are about 57 beads on each strand and the strands are 21 inches long.