The long-awaited new £5 note is finally here - and it seems it might be worth a lot more than a fiver.

Issued by the Bank of England last Tuesday (September 13), it is smaller, stronger and made of polymer, meaning it can apparently survive a trip through the washing machine.

Instead of prison reformer Elizabeth Fry, the note's back features Winston Churchill.

But what you may not know is collectors have recognised that since these are the Bank of England's first ever plastic note, some will be rather unique.

Loans at Home saw just how special they were to some people, when they found notes going for more than £200.

What should I look for?

For now, there are two things that could mark your new £5 note as special:

  1. Those that were printed from the first press (with serial numbers beginning AA01)

  2. Sequential serial numbers in a set of notes

So if you come across notes that fit the bill, you could be in the money.

It's worth a quick riffle through your purse or wallet – examples are currently selling for between £160 and £230.

How can I get one?

The new plastic fivers are said to be durable enough to survive as trip through the washing machine - or even into this curry (Pic: Stefan Wermuth - WPA Pool/Getty Images)

The first notes left distribution centres just after midnight on September 13 to be distributed to cash machines nationwide.

From there, they were taken to ATMs in six major cities in England and Wales – with members of the public able to withdraw them from around 9am.

But to guarantee getting your hands on one, you can head over to the Bank of England itself.

There is no cash machine at the Bank of England head office, but it does have a bank note exchange desk.

This allows anyone with an outdated note swap it for a current one – so anyone can exchange their old paper fivers with a new polymer one from September 13 onwards.

To swap your banknotes in person, take them to this address: Bank of England, Threadneedle Street, London, EC2R 8AH.

The counter is open from Monday to Friday between 9am and 4pm, excluding bank holidays.

Have you got a new fiver yet? What do you think of the new note? Let us know by commenting below or tell us on Facebook .