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 Replies: 10 / Views: 1,219 |
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New Member
United States
4 Posts |
Is weight alone sufficient in indentifying the rare 1977 d Kennedy half dollar? I have two. One weighs 11.4 grams and the other a solid 12. Is this possible? |
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Pillar of the Community
United States
7516 Posts |
Composition 1964: 90% Silver 1965-1970: 40% Silver; Outer layer: 80% silver 20% copper, core of 21.5% silver, 78.5% copper 1971-Date: Clad; Outside: 75% Copper, 25% Nickel; Core: 100% Copper 1976 Silver Collector Coins: Silver Clad 40%: 80% silver 20% copper, core of 21.5% silver, 78.5% copper 1992-Date Silver Proof: 90% Silver Weight 1964: 12.50 grams 1965-1970: 11.50 g 1971-Date: 11.34 g 1976 Silver Collector Coins: 11.50 g 1992-Date Silver Proof: 12.50 g Weight Tolerance (+/-) 1964: 0.259 grams 1965-1970: 0.400 g 1971-Date: 0.454 g 1976 Silver Collector Coins: 0.400 g 1992-Date Silver Proof: 0.400 g Your coin's weight is within tolerance. Edited by Chase007
07/20/2018 1:19 pm
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Rest in Peace
United States
17900 Posts |
It doesn't sound like you are guessing, Chase.  Always great to have that handy reference. |
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Pillar of the Community
 United States
2843 Posts |
Quote:
1971-Date: 11.34 g Quote:
Weight Tolerance (+/-)
1971-Date: 0.454 g Quote:
Your coin's weight is within tolerance. How do you figure? |
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Bedrock of the Community
United States
94367 Posts |
Confused here as well.  to the CCF! |
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Pillar of the Community
United States
7516 Posts |
Quote:
How do you figure? BigSilver, thanks for catching that. Sorry, it was a typo, missed the.. NOT.. meant to say : is NOT within tolerance  Edited by Chase007
07/20/2018 2:21 pm
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Pillar of the Community
United States
7516 Posts |
Quote:
Always great to have that handy reference. I agree, it always come's handy and save's time looking for them. I learned that from crazyb0, he was the mentor behind me archiving the good information. Edited by Chase007
07/20/2018 2:46 pm
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Pillar of the Community
United States
2843 Posts |
Quote:
BigSilver, thanks for catching that.
Sorry, it was a typo, missed the.. NOT..
meant to say : is NOT within tolerance Made me laugh. But since this forum does not do politics, I will not go there... In any event, it would seem that the OP is suggesting a leftover silver planchet was used in 1977. TTBOMK silver was not minted in Denver in '76 only in SF.Never mind that. PCGS has certified a silver plachet from Denver. It is ringing a bell that the planchets were all prepared and shipped from Philly maybe?Being out of tolerance for a CN clad half may be strange, but the answer would hardly be a silver planchet, since it is out of tolerance for that as well. (It is also too light to be a 90%) So what are we left with? Possibly a thick stock? Coin with junk on it? (We haven't seen pictures) Edited by BigSilver
07/20/2018 3:07 pm
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Rest in Peace
10197 Posts |
OPs question was "is weight sufficient to determine... ", no, it is NOT the sole determining factor. What does the edge look like? Wafered or solid silver? Is the outer material silver or cupronickel? tissue test may determine this. Then drop test even, sound silver or thunk like normal? Not any one method will tell definitively. Learning about all these things I mentioned is really predicate to reading a cherrypackers wishbook and searching for unicorns. Edited by Crazyb0
07/20/2018 3:47 pm
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Bedrock of the Community
United States
74679 Posts |
To CCF!  Pictures would really be a big help to us. Errers and Varietys.
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Pillar of the Community
United States
8715 Posts |
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Replies: 10 / Views: 1,219 |
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Posted 07/20/2018 1:52 pm
