Rare and most valuable British banknotes worth up to £150
BANK notes that turn up in your change could be worth up to £150 online - but only if they've got the right serial number.
Banknotes with very early serial numbers on them are often sought after by collectors. For example, the first note with the code AA01 000001 is given to the Queen.
It's got us thinking about whether the cash in our pocket is worth more than face value.
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