Brits urged to check their change for rare £1 coin that could be worth thousands of pounds

A coin expert on TikTok - known as 'thecoincollectoruk' - alerted people to a specific £1 coin in a revealing video

A coin expert on TikTok has revealed that Brits could be sitting on a small fortune if they manage to find a specific error on their 12-sided £1 coins. Taking to the platform, the expert - known as 'thecoincollectoruk' - shared a video of himself holding what appears to be a normal pound coin.

"£2,500 if you manage to find this error on your 12-sided £1 coins," he says at the start of the clip. He goes on to explain that "a few errors" can be found on these types of coins.

However, he adds that there is one specific mistake to watch out for that could end up bagging you the large amount of money he mentioned.

"You can see when we flip this over on the obverse [heads] side, this is a 2016 version of the £1 coin. But some were made with the micro-lettering on the reverse side with the date 2017. This is an extremely rare error - we only know of one that's been sold to a buyer in Spain, which sold for £2,500."

A close-up of the date showing 2017 in mirco-lettering is then shown in the clip. He goes on to advise people to use a microscope so they can see the date properly - as it is so small.

"You can see here the date 2017 in micro-lettering on every side. If you are going to look for this error in your change then you'll probably need a microscope because the micro-letting around the edge is extremely fine and very hard to see It's definitely worth checking if you have a 2016-dated coin on the queen's side for the micro-lettering on the reverse side for 2017," he says.

One grateful viewer claimed: "I will keep looking in my change thank you so much much appreciated sir," while another claimed: "I’m not being funny but i have one with the micro 2017 print what do I do ?!"

Another asked: "Do you know how many is out there with the wrong micro date because I've been looking since 2016 and I've never found one," with the coin expert saying they don't know how many were made.

Elsewhere, one hopeful follower wondered if their unusual £1 was worth anything: "I have 2017 one pound coin colour is slightly different too. What is it worth?" However, the expert commented that it is most likely a fake coin.