The most valuable £5 notes - serial numbers and the 'AA' codes to

The new notes are now in circulation - but some serial numbers are attracting sky-high prices. Here's how to spot a special fiver

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New Polymer £5 note - First Release #AA serial number - AA25

Most rare and valuable £5 notes in circulation revealed - from

Rare £10 notes: how to spot which ones are worth thousands?

Got a new Churchill fiver? Check the serial number for AA01

Revealed: How to tell if your new £10 note is worth thousands of

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RARE> AA02 collectable plastic polymer £5 note, early serial

Most rare and valuable £5 notes in circulation revealed - from

Check your cash: 'Fancy' serial numbers worth big bucks