Was any other metal than gold, silver or copper ever in history used to back a currency?

  • $\begingroup$ Not quite sure if you only mean paper currency backed by metals or actual metal coins as well. $\endgroup$
    – Giskard
    Aug 10, 2021 at 6:27

1 Answer 1


Spartan iron coins.

Roman bronze coins: Aes Grave

Chinese bronze coins: Ban liang (one type was bronze, not all)

A non-metal "currency" backed by various industrial metals: the cryptocurrency Tiberius coin.


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