Copper 1948 UK half crown

Discussion in 'Error Coins' started by Lee Gilmore, Apr 18, 2024.

  1. Lee Gilmore

    Lee Gilmore Active Member

    Hello friends.
    I found this coin in a bag of old pennies. It dates from 1948 and looks like a George VI half crown but struck in copper?
    The weight is 13.83 grams compared to the official weight of 14.14gm and I have analyzed the metal content as best I can with a spectrometer and it comes up at 87% copper 13 % nickel. It should be 75-25.
    Has anyone got any views on this because I cannot see the point of a counterfeit 1948 as it's not silver and has little value.
    Thanks for your input.

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  3. Pickin and Grinin

    Pickin and Grinin Well-Known Member

    Maybe a pattern?
    Edit- I really know nothing about foreign coins.
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  4. expat

    expat Remember you are unique, just like everyone else Supporter

    As far as I am aware, the last issue in silver (type 1) was 1946. The coinage act changed the composition to copper-nickel, although maintaining the same weight, and type 2 was minted for two years only. 1947-1948, with type 3 from 1949-1952.
    Lee Gilmore likes this.
  5. Lee Gilmore

    Lee Gilmore Active Member

    Thanks yes that's what I think copper nickel type 2 so this one in copper not copper nickel is something unusual
  6. expat

    expat Remember you are unique, just like everyone else Supporter

    I have a 1947 half crown, its weight is 13.91grams, within weight tolerance specification. Copper and nickel are next to each other on the periodic table with nickel being heavier than copper. So, a mix that has slightly less nickel will result in a lighter coin.
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  7. cwart

    cwart Senior Member Supporter

    Kinda looks like it spent some time in the ground. One of the resident metal detectorists has several pictures of coins he's dug up that look very similar to this one.
    derkerlegand and Lee Gilmore like this.
  8. cwart

    cwart Senior Member Supporter

    Adding to my earlier post.... I think its @paddyman98 who has the pictures. If I'm right maybe he can post them here too....
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  9. norantyki

    norantyki CoinMuncher

    Either acid or ground, either way, it is a damaged coin, and is not an error.
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  10. alurid

    alurid Well-Known Member

    The coin should be a KM# 866. It looks like it has been in a fire or buried underground for a long time.
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  11. 7Jags

    7Jags Well-Known Member

    Yes, this is a corroded coin almost assuredly. I have an halfcrown of 1963 struck in copper and will picture it shortly....LOL.....BTW, the NGC label is in error as it is struck on a full penny flans.

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  12. Treashunt

    Treashunt The Other Frank

    yup, likely a ground recovery
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