Is your £1 coin worth £200?

Finding an error coin is like winning the lottery for collectors. And after reading today’s blog, you’ll be adding another rare error to your Change Checker watch list!

As earlier this month, a pub worker discovered a £1 coin that was minted from just ONE metal – not two – which went on to sell for £205 on the secondary market!

You see, normal £1 coins have a gold coloured Nickel-Brass outer ring and a silver coloured Nickel plated interior, but this rarity was completely gold-coloured. Check it out in the image below…

Understandably this lucky find was immediately added to eBay and the uniqueness of the coin meant there were 24 bids from five interested bidders, before it eventually sold on August 8 for the unbelievable price of £205!

Mad, right?

One explanation for the supposed ‘error’ could be that the coin missed the plating stage during production.

Whilst this is the first time we’ve heard of the ‘error’ being found on a £1 coin, similar stories have been reported on £2 coins before…

The Holy Grail of Bi-metallic Errors

The image above shows what has been described as the Holy Grail of bimetallic ‘errors’ and is the result of the nickel-brass £2 blank not having the inner core section punched out before being struck.

This means that the £2 coin is made from one full piece of nickel-brass, just like the £1 error above – completely contrasting the very idea of a bimetallic coin.

A 2007 monometallic £2 was verified by The Royal Mint and in the email confirming the mis-strike it was mentioned that they had only seen 4-5 similar coins before.

This rare striking error is highly sought after and coins have achieved extraordinary prices in private sales and auctions.

So if you don’t consider yourself a Change Checker, it might be time to rethink as these exceptional error coins could be lying unused at the bottom of your bag.

Have you ever discover an error coin? If so comment below as we’d love to hear all about your coin hunting experiences!


If you’re interested in coin collecting, our Change Checker web app is completely free to use and allows users to:

– Find and identify the coins in their pocket
– Collect and track the coins they have
– Swap their spare coins with other Change Checkers

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Sign up today at: www.changechecker.org/app

Rarest UK Coins Revealed! 2020 Mintage Figure Update

One of the biggest numismatic updates of the year comes when the latest mintage figures are announced and today we are very excited to share the updated figures for 2020 circulation coins, which have just been revealed by The Royal Mint!

As the UK’s most collected coin, it’s great to hear that three 50p designs were released into circulation last year. These include the Withdrawal from the European Union 50p, the Diversity Built Britain 50p and this year’s Royal Shield 50p.

We’ve updated the Change Checker 50p Mintage Chart with these new additions to show you which 50ps you should be looking out for:

The rarest of the trio to be released is the Withdrawal from the EU 50p, commonly known as the Brexit 50p, with a circulating mintage of 10,001,000. This is closely followed by the Diversity Built Britain 50p with a mintage of 10,300,000.

These numbers are fairly high for commemorative coins, meaning collectors stand a good chance of finding these ones in their change. What’s more, at 46,540,375 coins in circulation, we expect many collectors to be able to find the 2020 definitive Royal Shield design – just make sure you keep checking the dates on the reverse of your 50ps!

Are you lucky enough to have these in your collection? Let us know in the comments below!

2020 Withdrawal from the EU and 2020 Diversity Built Britain 50p coins

The Royal Mint’s Director of UK Currency, Mark Loveridge, said: “As the original maker of UK coins, we are delighted to play our part in celebrating the story of the nation. In 2020 two important new designs were issued on fifty pences, commemorating British diversity and the UK’s withdrawal from the European Union. Coin collecting remains a popular hobby in the UK, and finding a special design in your change adds to the excitement.”

What about the Olympic 50ps?

In 2012, the release of the Olympic 50p series kick started a collecting frenzy across the nation.

It’s estimated that around 75% of these coins have been removed from circulation by collectors which means they are incredibly sought-after, especially considering these 50ps have some of the lowest mintage figures in circulation…

Many of the Olympic 50ps have a mintage less than 2,000,000 with the rarest (the Olympic Football 50p) having a mintage of just 1,125,500. See the full mintage figures for these coins here.

2011 Olympic Football 50p. Mintage: 1,125,500

Taking these rare 50ps into consideration, the 2018 Peter Rabbit and Flopsy Bunny coins would sit in joint sixth position, below the Kew Gardens, Football, Wrestling, Judo and Triathlon 50ps.

£2 Coin Update

As well as updating the 50p mintage figures, The Royal Mint also revealed that no £2 coins were issued into circulation in 2020.

There have been no new £2 coins issued into circulation since 2016, which may in part be due to the introduction of the new 12-sided £1 coin in 2017.

2016 Britannia £2

It was recently confirmed that The Royal Mint has no plans to strike any £2 coins for circulation for the next 10 years, so unfortunately, there may not be any mintage updates for this denomination for a while.

Whilst 88,071,910 1p coins were released in 2020, no 2p coins have entered circulation since 2018, perhaps suggesting it’s time we question what the future has in store for our beloved coppers.


Have you been lucky enough to find any of these coins in your change? It’s always exciting when new mintage figures are revealed and your realise just how rare the change in your pocket really is!

We’ll be updating the Change Checker Scarcity Index this month and it will be exciting to see how these new figures impact the index.


If you’re interested in coin collecting, our Change Checker web app is completely free to use and allows users to:

– Find and identify the coins in their pocket
– Collect and track the coins they have
– Swap their spare coins with other Change Checkers

Change Checker Web App Banner 2 Amends 1024x233 1 1024x233 - Your January 2019 Scarcity Index update!

Sign up today at: www.changechecker.org/app

Rare Trial Pieces including Kew Gardens 50p to be Auctioned for the First Time Ever!

Have you heard the news that for the first time in its history, The Royal Mint plan to auction rare sample coins for collectors?

Trial pieces are some of the very first samples of a new coin to be struck. They are used to set the standard for each coin issued and are carefully inspected by coin makers to ensure they meet the correct standards before striking of the new design begins.

Trial Coins Put Up For Auction

Rebecca Morgan, director of collector services at the Royal Mint, said: “This month we are delighted to offer a sample of our trial pieces at auction for the first time. Each of the trial pieces has played an integral role in creating the final coin, and offer collectors the chance to own a part of numismatic history.”

The Royal Mint have announced that collectors will have the chance to get their hands on a number of trail pieces at auction on Sunday 26th September.

Included in the auction are the coveted Kew Gardens 50p (the UK’s rarest circulation coin) and the Three Graces (a collection that sold out in 25 minutes last December).

Rare Kew Gardens 50p

2009 Kew Gardens 50p

Considered the ‘holy grail’ of change collecting, the Kew Gardens 50p tops the Change Checker Scarcity Index time and again. In fact, this coin is so sought-after that collectors are willing to pay well over face value to get their hands on one, with our latest eBay Tracker revealing the coin currently selling for £157 on the secondary market!

However, we always urge buyer caution when purchasing a Kew Gardens 50p, as there are a number of fakes out there to be aware of. Find out how you can spot the fake Kew Gardens 50ps here.

1994 Mayflower £2 Trail Piece

1994 Mayflower Trial £2

Rare trial pieces have been seen before, often becoming very sought-after amongst collectors…

In 1994, ahead of the introduction of the UK’s first bi-metallic coin – the £2 – The Royal Mint created a trial piece. This was used by The Royal Mint to test the minting process of the new coin and to help the automatic vending industry re-calibrate their machines in preparation.

The trialled reverse design features a three-masted sailing ship. Although the ship is not named, it is likely to be the Mayflower, which set sail from Plymouth to America to establish the first permanent New-England colony. The outer ring bears the inscription Royal Mint Trial with the date, 1994.

There were just over 4,500 packs of this trial £2 issued and as the coin design was never released into circulation, it has become an incredibly rare example of a bi-metallic £2 coin.

If you own one of these £2 trial pieces you can consider yourself very lucky!

But with the upcoming auction set for the 26th September, we’re sure collectors will be excited at the chance of getting their hands on the trial piece coins offered by The Royal Mint, including that sought-after Kew Gardens 50p which we’re sure will be incredibly popular.


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