定義

• Probably the most popular coin minted in Japan. It was first made at Mito in the 3rd year of Kwan-ei (Per- manent Liberality), 1624, and was not dis- continued until 1859, a period of two hun- dred and thirty-three years. It was made in nearly all of the provincial mints, usu- ally in copper or bronze but sometimes in iron. Collectors in Japan recognize over a thousand varieties of this coin.

資源

• Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)

人际关系