Four characters - Kan Ei Tsu Ho / Blank. 24.5mm, 2.20 grams. Yoshidajima, Fujisawa, Sagami Province, minted for a few years from 1739. Hartill 4.181.

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".