monme
匁 — Measuring
A Japanese unit of weight. One monme is about 3.75 grams.
Keichō chōginAD 1601–1695
Kan'ei Tsūhō (Ko-Kan'ei, Shiba issue)AD 1636–
Mameita-gin (with the 'gen' mark)AD 1695–1706
In Japan, where silver was used by weight, silver transactions were discussed in this unit. One thousand monme equals one kanme.