double headed Kennedy half dollar

Discussion in 'US Coins Forum' started by ryleigh, Oct 13, 2002.

  1. mikenoodle

    mikenoodle The Village Idiot Supporter

    I'm still astounded that they actually exist.

    Given the way that the dies fit the press, how do these happen, @GDJMSP ?
     
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  3. mikenoodle

    mikenoodle The Village Idiot Supporter

    "slightly weakly struck"... LMBO
     
  4. baseball21

    baseball21 Well-Known Member

    Strike issues. Clearly something went horribly wrong for that to exist but the grade is kind of meaningless, it's more just saying it is Uncirculated and becomes a ranking system if another ever popped up
     
  5. GDJMSP

    GDJMSP Numismatist Moderator

    Because dies aren't/weren't made the way you seem to think they are Mike.

    They are all round. Now I don't have pictures of a lot of old dies, both obv and rev, but even hundreds of years ago when they still hammered coins they were round. These should give you a representation at least.


    Here's an old hammer die.

    592253.jpg


    Here's an old hammer die and an anvil die.

    qtr taler dies 1560 Joachimstal.jpg


    Here's a picture of a milled die from the early 1900's.

    50 centavo die b.jpg



    Here is a picture from the mint website of the progression of how modern dies are made, from bar stock to completed dies.



    Bar-stock-Die-Blanks-Works-Hubs-and-Dies.jpg
     
  6. -jeffB

    -jeffB Greshams LEO Supporter

    "slightly weakly struck" :hilarious:

    To produce a train-wreck like that, I can imagine almost anything. Two obverse dies, a planchet stuck in a piece of pipe, and a sledgehammer, while somebody else stood watch and/or took care of the security cameras...
     
  7. richard sheehan

    richard sheehan New Member

  8. Randy Abercrombie

    Randy Abercrombie Supporter! Supporter

    That I did not know. Cool info.
     
  9. 19Lyds

    19Lyds Member of the United States of Confusion

    No.

    No possibility.
     
  10. paddyman98

    paddyman98 I'm a professional expert in specializing! Supporter

    This thread is from 2002.. This member has not been seen since October 2002 o_O
     
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  11. -jeffB

    -jeffB Greshams LEO Supporter

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  12. 19Lyds

    19Lyds Member of the United States of Confusion

    What can I say?

    I read a question, I answer the question.
     
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  13. Rassi

    Rassi #GoCubs #FlyTheW #WeAreGood

  14. LaCinda

    LaCinda New Member

    1964 Kennedy double headed coin weighs 12.4 grams and .43 oz
     

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  15. Michael K

    Michael K Well-Known Member

    As you can see in the second photo the circumference is slightly smaller than the first. It has been machined down, and the first coin hollowed out, and the second coin placed inside, to create a 2 headed coin. If you look for a seam, or try to pry them apart you will probably see that there were 2 coins hollowed/cut in half to make this.
     
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  16. TypeCoin971793

    TypeCoin971793 Just a random guy on the internet

    The obverse and reverse dies have different attachment hardware to prevent that very thing from happening. The odds therefore are zero.
     
  17. -jeffB

    -jeffB Greshams LEO Supporter

    Not quite zero. (Link goes to story with video, starring our very own @Fred Weinberg.) But close enough to zero.
     
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  18. TypeCoin971793

    TypeCoin971793 Just a random guy on the internet

    Nice. But it isn’t really a “legitimate” error:

    “Something that shouldn’t happen, but apparently did at the hands of some enterprising mint workers.”
     
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  19. -jeffB

    -jeffB Greshams LEO Supporter

    If it came out of Mint equipment, it's apparently "legitimate enough" for the TPGs, and for enough collectors to constitute a market. I don't much like it either, but I'm not sure what to do about it (or, for that matter, those 1913 V-nickels).
     
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