currency bar

British  

noun

1. a long narrow iron bar, often sword-like or spear-like in shape, dating from the pre-Roman and Roman period in Britain; the purpose of currency bars is not certain, and while they may have been used in trade, they may have had a ritual significance

2. a metal bar of any of various shapes, used as a form of currency

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Example Sentences

For example, the bill still lets the Office of the Comptroller of the Currency bar state consumer protections where no federal safeguards exist.

From New York Times