 The production of machine-struck cash coins in Qing China ran contemporary with the production of machine-struck French Indochinese Nguyễn cash coins, but unlike in China milled cash coinage would eventually become popular in French Indochina with the Khải Định Thông Bảo (啓定通寶) .Chinese cash coins originated from the barter of farming tools and agricultural surpluses.Around 1200 BC, smaller token spades, hoes, and knives began to be used to conduct smaller exchanges with the tokens later melted down to produce real farm implements.