#3 Koshu 1 bu-kin

Territory: Japan, Takeda clan (Kai province)
Original name: 甲州壱分金
International name: Koshu 1 bu-kin
Year: 享保6年~享保12年　(1721~1727)
Variety: 背重
Specifics:
Size and weight: 14.7 - 15.0 mm, 3.67 g
Catalog number: JNDA 09-87 (古72)
Notes: