A £10 note could be bought for £600 when it's auctioned off at the weekend.
On Saturday, auctioneers Chrystals will sell off the 1972 note at a sale in Allan Street in Douglas.
The banknote, one of the first to be produced after decimalization, is described as being crisp and in good condition.
It's expected to fetch between £400 and £600, according to the business.
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