The (aka: for short) was a monetary unit of Japan towards the end of the Edo period. During their time in circulation each coin was worth of a gold Ryō, and could also be exchanged four silver or gold shu coins. The medium of exchange was later expanded to allow 3 Ichibugin for a United States or Mexican Silver Dollar. While no coins worth "3 bu" were ever produced by the shogunate, the corresponding coins were countermarked as such.

History

Specifications Image Minted Mass Material 1837 – 1854 98.86% silver, 0.93% miscellaneous, 0.21% gold 1859 – 1868 89.36% silver, 10.57% miscellaneous, 0.07% gold 1868 – 1869 80.66% silver, 19.25% miscellaneous, 0.09% gold

Circulation figures Denomination Era Namesake Japanese dates Gregorian dates Mintage

See also Tokugawa coinage

Notes

References