Swaledale Museum in Reeth has a loan exhibition from a local private collector of 19th century British copper tokens that were introduced to facilitate trade.
The display features more than 70 pieces from places that include the Flint Lead Works, Sheffield Iron Works, Newcastle Cotton Works and Devon Mines. Museum staff have described them as miniature pieces of art.
A spokesperson said: "Tokens of the early 19th century are inextricably tied up with the economy and history of the times in which they are produced. If you have imagination, if you are moved by history or by the archaeology of the industrial revolution, you will find them fascinating."
A token is a privately issued coin. They have been issued over the centuries in Britain in response to a lack of official regal currency for small change.
Further information about activities and events at the museum is available at www.swaledalemuseum.org