1977 D Silver Half Dollar Error?
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  1. #1

    Feb 2019
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    All Types Of Treasure Hunting

    1977 D Silver Half Dollar Error?

    I donít post much here or comment but I love to read forums on this website. I need your guys help. I was coin roll hunting and I think I found the rare error. I donít have a scale but the edge looks silver. Should I send it off to be graded and or authenticated? Thank you!
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    A2coins and EQ8 like this.

  2. #2
    us
    Sep 2019
    alabama
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    Does it sound like a clad one if you drop in a counter? Silver will have very different sound.
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  3. #3
    us
    Dec 2006
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    An inexpensive scale would be a lot cheaper than sending it out to a grader if you are not sure.
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  4. #4
    Charter Member
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    Quote Originally Posted by l.cutler View Post
    An inexpensive scale would be a lot cheaper than sending it out to a grader if you are not sure.
    +1

    Need to know the weight first.
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  5. #5
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    Tommy

    Dec 2015
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    If they stopped using 90 percent silver in 64 then 40 percent till 70 how could that ever happen even by error.
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  6. #6
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    Tommy

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    Thats a question!! not trying to make a mean comment Im learning stuff everyday and want to know if this did ever happen.......Tommy
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  7. #7
    CJ9
    CJ9 is offline
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    Quote Originally Posted by A2coins View Post
    If they stopped using 90 percent silver in 64 then 40 percent till 70 how could that ever happen even by error.
    Maybe left over from the bicentennial silver clads
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  8. #8
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    Quote Originally Posted by A2coins View Post
    If they stopped using 90 percent silver in 64 then 40 percent till 70 how could that ever happen even by error.
    In 76 San Francisco minted 40% bicentennial half dollar. They accidentally carried some of those over to those coins or just used them cause they had them. I have not researched it that well.
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  9. #9

    Feb 2006
    1,502
    1580 times
    Weigh it. 90% 12.50 grams. 40% 11.50 grams. Copper cupronickel clad 11.34 grams.

    Time for more coffee.
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  10. #10
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    Hunter

    May 2018
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    Interesting find

    Would also like to know the weight
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  11. #11

    Feb 2019
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    I did a tissue test and a drop test safely and I’m starting to have my doubts this could would have been worth 4 figures if it was what I thought it was. I guess my question is can a small amount of clad show up on a silver clad Kennedy from 1965-1970. It is so so faded it looks like silver compared to other edges. I wonder if that just means the clad on the edge is faded. Can that happen? Or can it still be a piece of silver clad. I recognize that weighing it is the answer but I can’t do that at this time

  12. #12
    Charter Member
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    Quote Originally Posted by Bidoof77 View Post
    I did a tissue test and a drop test safely and I’m starting to have my doubts this could would have been worth 4 figures if it was what I thought it was. I guess my question is can a small amount of clad show up on a silver clad Kennedy from 1965-1970. It is so so faded it looks like silver compared to other edges. I wonder if that just means the clad on the edge is faded. Can that happen? Or can it still be a piece of silver clad. I recognize that weighing it is the answer but I can’t do that at this time
    Yes, the rim check showing a muted clad layer can indeed not be as evident due to the two metals interacting with environmental factors causing discoloration. And you are off on the value. The silver '71 errors have realized $82K at auction.

    Tommy, CJ suggested a possible answer with leftover planchets from the bicentennial. But also realize the US Mint produces coins for other countries.
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  13. #13
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    Apr 2005
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    Not to mention that 40% half dollars have nothing to do with this. The coins are 2 different sizes, so leftover planchets wouldn't apply.
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    2020 COIN ROLL HUNTING TOTALS!

    Wheats..21
    Buffalos..0
    war nickels.0
    Silv Dimes...-2
    Silv Quarters-0/0
    Barbers-0/0
    Walker 0
    Bens- 0
    Kenn. 90%- 0
    Kenn. 40%- 0
    Proof- 0
    Silv. Proof -0
    Commemorative-0/0

  14. #14

    Jun 2019
    18
    32 times
    All Types Of Treasure Hunting
    I would guess that it is silver plated ( similar to gold plated) as I have come across some silver plated halves.
    2020 CRH Season:
    Halves (13 Boxes): 9 90% (7 Walkers, 1 Benji, 1 1964), 17 40%, 4 Proofs
    $971 Teller: 11 Ikes, 12 90% (2 Benjis, 10 1964), 23 40%, 2 Proof

    Nickels (8 Boxes): 1 V, 6 Buffalo, 7 War
    $288 CWR: 1 V, 2 War, 1 Proof (2019)

    Pennies (1 Box): 17 Wheats

    Coin Machines: 14k Ring, 3 dimes(46, 64x2), 22 Foreign

    2019 CRH Season Totals:
    Halves (50 Boxes): 21 90%, 47 40%, 10 Proofs
    Nickels (53 Boxes): 2 V, 33 Buffalo, 45 War, 8 Proofs
    Pennies (10 boxes): 208 Wheats

  15. #15
    Charter Member
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    Quote Originally Posted by enamel7 View Post
    Not to mention that 40% half dollars have nothing to do with this. The coins are 2 different sizes, so leftover planchets wouldn't apply.
    Perhaps, I'm misunderstanding your statement. But 40% half dollars and clad half dollars have the same diameter of 30.6mm and the same thickness of 2.15mm.

    Overall, I think the OP's coin is CuNi clad and it would be extremely remote that planchets used in '75 at the San Fran mint found their way to Denver years later. But the wrong planchet errors have shown up in '71 Kennedy halves along with Balboa's being struck on 40% planchets.
    Last edited by Diver_Down; May 23, 2020 at 06:46 AM.
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