The new notes are now in circulation - but some serial numbers are attracting sky-high prices. Here's how to spot a special fiver
There's another rare £5 note type selling for thousands of pounds - Mirror Online
Shoppers urged to check for 'special' £5 notes worth more than £100 - Chronicle Live
Fancy Serial Numbers On Currency
What Serial Number should I keep? What is a Fancy Bank Note
Have you got one? These rare £5 notes could be worth hundreds - Stoke-on-Trent Live
Your new £20 note could be worth thousands - here's how to tell - Chronicle Live
Which new £5 notes are worth the most? Collectors seek the first few thousand of new style currency - Somerset Live
Fancy Serial Numbers On Currency
The 'secret' meaning of the serial number on every Australian banknote
A Reference About TYPES & PRICING Of FANCY SERIAL NUMBERS
The most valuable £5 notes - serial numbers and the 'AA' codes to watch for - Mirror Online
Most rare and valuable £5 notes in circulation revealed - from quirky serial numbers to vintage copies worth hundreds
How much is my polymer banknote really worth? - Change Checker