Early Chinese coins were in the form of tools, usually knives or
spades. From the third century BC these forms were replaced by coins
that were round with a square central hole. The circular outline
of these coins is said to represent heaven, with the square centre
representing earth. The central hole also allowed the coins to be
strung together. It is not known how old these coins are.
View database record 1896.29.27-.30
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