Ichibuban

The Ichibuban (一分判) was a monetary unit of Japan.^[1] The Ichibuban was a gold coin that was worth a quarter of a Koban.

The gold Ichibuban of 1714 (佐渡一分判金) had a weight of 4.5 g, with 85.6% of gold and 14.2% of silver. The silver Ichibuban from 1837 to 1854 (Tenpō Ichibugin, 天保一分銀, "Old Ichibuban") weighed 8.66 g, with an alloy of 0.21% gold and 98.86% silver.^[2]

The Nibuban (二分判) was worth double the Ichibuban, and half a Koban and was also a rectangular coin.

Gold Ichibuban (一分判金)

• 
  Keichō Ichibuban
• 
  Kyōhō Ichibuban
• 
  Genbun Ichibuban
• 
  Bunsei Ichibuban
• 
  Tenpō Ichibuban

See also

• Tokugawa coinage

Notes

• v
• t
• e

Japanese currency (pre-yen)

Topics

• Currency Museum (Japan)
• List of Japanese cash coins by inscription
• List of Japanese coinage patterns
• Mother coin
• Nagasaki trade coins
• Numismatic charm
• Momme (unit)
• Yen currency

Coinage

Pre-Edo	Mumonginsen 667–672 Huhonsen 683 Kocho Junisen 708–958 Kaiki Shoho 760 Taihei Genpō 760
Edo	Koban 1601–1868 Kan'ei Tsūhō 1626–1868 Ichibuban 1714–1854 Shu (silver) 1772–1869 Shu (gold) 1824–1869 Tenpō Tsūhō 1835-1870 Ichibugin 1837–1869
Multi	Chinese coinage c. 1101–1700 Mon 1336–1870 Bitasen 1404–1670 Ryukyuan mon 1454–1879 Ryō 1500s–1871 Ōban 1573–1862

Paper currency

• Edo period scrip
  • Hatamoto
• Negotiable instrument
• Rice stamps