The truly unique ‘Bronze 20p’ error coin


We love to hear when Change Checkers make a great coin discovery. We’re often contacted about mis-strikes which are interesting oddities but what really excites us are ‘error’ coins.

Genuine ‘error’ coins, especially those verified by The Royal Mint, are VERY rare and finding one is a goal for many change collectors.

So imagine our excitement when somebody contacted us after finding one of the rarest ‘error’ coins yet!

The ‘Bronze 20p’

Earlier this year, we were contacted by a collector named David Crosier who informed us he’d found a very rare ‘error’ coin.

A collector for over 50 years, David told us how he’d often look out for mis-strikes and ‘mules’ but there was something special about this particular coin. Initially he presumed the coin was plated but decided to send it to The Royal Mint to be certain.

The ‘Bronze 20p’ flanked by a 20p and 1p coin from the same year

After examination by x-ray fluorescence spectrometry, the coin was confirmed by The Royal Mint as an extremely sought-after minting ‘error’.

Somehow a 1p ‘blank’ found its way into the presses and a 20p was accidentally struck onto it.

The ‘Bronze 20p’ is significantly thinner than he standard 20p coin

Errors like this are extremely rare, in fact so rare we’ve never heard of another ‘Bronze 20p’, but The Royal Mint verified the authenticity of the coin with a letter and so here at Change Checker we knew this was an opportunity not to be missed.

Chris Barker, Assistant Curator for The Royal Mint Museum, confirmed the ‘Bronze 20p’ as a genuine ‘error’ coin

Now the great news… we want to give away the amazing ‘Bronze 20p’ to one lucky Change Checker!

And what’s more, you won’t just win the ‘Bronze 20p’, the coin is set in a specially designed presentation box alongside a Brilliant Uncirculated 1p and a Brilliant Uncirculated 20p coin from the same year, beautifully highlighting the minting error.

The ‘Bronze 20p’ is housed in a specially designed presentation box alongside a Brilliant Uncirculated 20p and 1p coin from the same year.

Your chance to win the coin

We’ll be selecting a lucky Change Checker to win this coin.  If you’re already registered then we’ll automatically include you in the draw.

To register your free account, all you need to do is enter your email address and choose a password.


Full Terms and Conditions can be found below.

Good luck!

Terms & Conditions

  1. All registered members of at midnight on 7th December 2017 will be automatically entered into the prize draw. No purchase is necessary to register.
  2. The draw will take place on 11th December 2017 and the winner will be notified on that day by email to their registered email address.
  3. The winner will receive the “Bronze 20p”. There is no cash alternative.
  4. Participants agree to meet reasonable requests to assist publicity.
  5. The prize draw is promoted by The Westminster Collection / Change Checker, trading divisions of 288 Group Ltd.
  6. Employees of 288 Group and their families are not eligible to enter.
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51 Responses to The truly unique ‘Bronze 20p’ error coin

  1. michael says:

    Terrific Change Checker`s Award`s, really good idea , very interesting story about bronze 20p too. I have got an unusual £2 coin,commerating Scotland hosting the 1986 Commonwealth game`s . It is the only one I have seen , 1 colour & smaller than modern £2 coin`s. Any Idea as to value please ? Season`s greeting`s , Michael Ashton.

  2. John says:

    I would love to win 👍

  3. Terri Dustan says:

    I tried entering but the site wouldn’t let me .. gutted

  4. Paul Chapman says:

    I would like to meet this generous guy that’s giving away fantastic coin,and it’s saying something abt this guy..
    Thanks for your kind offer..good luck to the lucky winner of this free giveaway offer


  5. Mrs J G Roantree says:

    I had one of those. I just assumed it was corroded and had been through a washing machine

  6. Josh Griffiths says:

    I have a commonwealth Wales £2 with queens head on the reverse upside down! Have looked everywhere to see if there are others that this has happened to but not managed to find anything about it! I have pictures of the coin if anyone would like to see! Will be sending it to the Royal mint soon! Has anyone else got one?

  7. Philip speers says:

    I have a 2p coin which is only struck on one side.the other side is blank would like some feedback on this.

  8. Maurice says:

    Love to win this 20p coin

  9. Pearl Thomson says:

    Let me win please never win anything, and my collection would look better with it in

  10. gloria says:

    I would love this in my collection.

  11. I have 2 can't believe they are that rare? says:

    I have 2 how can they be that rare?

  12. Sheila Round says:

    Would love to be considered to win. Thankyou

  13. lor255 says:

    Would love to win this just started colleting

  14. Adam says:

    I currently have one of these errors and in the past I’ve owned another two. Not a particularly rare coin in my eyes. Still, a good gift for an enthusiast.

  15. H. Robinson says:

    Awesome 🙂 good luck to everyone.

  16. peter mountney says:

    would love this in my collection if i am lucky to be picked .

  17. Mark/jane says:

    Good luck everyone 🙏🏻

  18. Mark box says:

    Good luck everyone 🙏🏻

  19. Andy Dentten says:

    Well done guys, I’ve just started collecting and this is a brilliant idea. Keep up the the great work!

  20. Nita Khurana says:

    Winning a unique coin is like a dream come true… Wishing for the lady luck to favour me.. It will be great to be the special one

  21. Pete says:

    Nice prize

  22. Mr S M Barron says:

    What a generous guy to donate this unique coin, and what a great company to put it up for a raffle prize. I’ve collected the circulated 20p coins since day one and this if I was lucky enough to win would be the prize of my collection. Change checker you are truly awesome!

  23. Minpinsue says:

    Who wouldn’t want to win such an amazing coin for free.

  24. Dave parker says:

    I’ve entered quite a few of these but never had any luck perhaps to time

  25. Sharon says:

    Amazing what a “FAB” give away. I know I would love this for my collect. Like I am sure every coin collector would. GOOK LUCK EVERYONE what a great coin to have in a collection. Fingers crossed 😬😉xx

  26. Rose Amuah says:

    Thank you
    It is interesting and exciting that this rare coin is in a on offer for winning. Why don’t you just give it to the person who found it. I think it’s only fair.
    Thank you.

  27. Michael Whitburn says:

    wow this would go great with my ever growing collection from Westminster collection .
    also be the first time i ever won anything worth having.

  28. Peter fairway says:

    Would love to win this very rare coin. It would look great with the rest of my collection. Best of luck to everyone.

  29. Tom Rae says:

    Would love this for my daughter or my grandson who both collect odd coins

  30. Peej says:

    I’ve just had a ‘little jig’?? with sepsis. This coin would be great to pass on to my bairns.

  31. Perry McGowan says:

    Would love to win this coin. What a rarity to own.

  32. Janet Coyle says:

    Need some good luck this year and it would cheer me up no end if I was to win this.

  33. Nadine Smith says:

    would love to win, just love quirks and anomalies x

  34. Mr J. Clark says:

    if i could win this it would break a very long losing streak.

  35. Ricky Wells says:

    In It to win it lol


    It would be a great Christmas box

  37. lisa/mark says:

    love to win this for collection

  38. Maureen Mcgeown says:

    Like to register.

  39. Nigel Kerr says:

    If ur not in u can’t win

  40. Ian Tatlock says:

    Have been a collector for around 4 years and have just received my first platinum wedding 50p from a collection of 7. This set will be of great importance to my collection. This rare 20p will be something all collectors will want. Win win please.

  41. Joan says:

    Yes I would love to win this coin, I just love coins that or different, I’m always out off pocket, because every time I get one, no matter how skint I am will not spend them. My grandchildren just love looking at all the coins

  42. Sheila Peart says:

    Wow fabulous give away , would be wonderful to have this in my coin collection. Finger crossed, good luck all

  43. Pete furesz says:

    I’ve only just started collecting coins recently .I decided to do it for my grandchildrens when there older.I would love to win the 20p coin to add to my growing collection. WIN WIN please

  44. A Goodinson says:

    Would love to win the set to add to my colection

  45. Ricki james says:

    Wood to win for my wife as she very ill with cancer

    • Luke Hearn says:

      Hi Ricki, I am sorry to hear that your wife is unwell. The winner will be selected at random so everybody will have an equal chance to win the ‘Bronze 20p’. Luke

  46. Mrs sylvia Mccann says:

    Yes please I would love to win this coin been a collector for a long time and would love to have it with my collection

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