Four characters - Kan Ei Tsu Ho / Blank. 24.5mm, 3.19 grams. Yoko-Oji, Toba, Yamashiro Province, 1736-1745. Hartill 4.127.

Most Japanese coins are very rare. These coins are, however, common - they were inspired by the Ming dynasty cash from China. "Kan Ei Tsu Ho" means "Universal Treasure of Kan Ei".