Four characters - Kan Ei Tsu Ho / Blank. 25mm, 3.68 grams. Ishinomaki, Sendai, Mutsu Province, cast 1728-1732. Hartill 4.138.

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".