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1967 Kennedy Half Odd Color Weighs 12.2

 
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Author Previous TopicReplies: 10 / Views: 538Next Topic  
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103 Posts
 Posted 08/14/2020  03:25 am Show Profile   Bookmark this topic Add Tman1515 to your friends list Get a Link to this Message
Help?


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 Posted 08/14/2020  05:20 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
11.5 is normal +/- mint tolerance. Color is just toning.It is 40% silver though.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
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United States
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 Posted 08/14/2020  10:10 am  Show Profile   Bookmark this reply Add juliusolis to your friends list Get a Link to this Reply
I copied and pasted this comment from a previous topic last year. I hope this may help. For me, looks like your coin is convincingly a little overweight. Ask someone with an XRF analyzer to help you figure out the actual composition of your coin.


Kennedy half dollar

1947 to 1964
Weight: 12.500 grams
Tolerance: 0.259 grams
Diameter: 30.61
Composition: 900 Ag, 100 Cu

1965 to 1970
Weight: 11.500 grams
Tolerance: 0.400 grams
Diameter: 30.61
Composition: 40% silver clad

1971 to date (excluding the Bicentennial 40% silver clad)
Weight: 11.340 grams
Tolerance: 0.454 grams
Diameter: 30.61
Composition: 75 Cu, 25 Ni on pure CU

1976 (40% silver clad)
Weight: 11.500 grams
Tolerance: 0.400 grams
Diameter: 30.61
Composition: 40% silver clad
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 Posted 08/17/2020  3:09 pm  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
If the scale is accurate that coin is far enough out of tolerance to possibly be worth a premium.
Gary Schmidt
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 Posted 08/17/2020  3:29 pm  Show Profile   Bookmark this reply Add Jim0815 to your friends list Get a Link to this Reply
with Conder101.
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 Posted 08/18/2020  11:42 pm  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
As far as the color, that isn't unusual for 40% silver halves.
Gary Schmidt
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Germany
2 Posts
 Posted 10/24/2020  11:49 am  Show Profile   Bookmark this reply Add Petuhin to your friends list Get a Link to this Reply
And who knows the portable analyzer will be suitable for determining the composition?
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 Posted 10/24/2020  11:52 am  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
Agree, the toning looks very normal here.
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 Posted 10/24/2020  12:13 pm  Show Profile   Bookmark this reply Add ijn1944 to your friends list Get a Link to this Reply
Trusting the scale is calibrated. Color/tone is not uncommon for 40% Kennedys.
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 Posted 10/27/2020  1:44 pm  Show Profile   Bookmark this reply Add Petuhin to your friends list Get a Link to this Reply
By the way, I already found a good analyzer. It was not as difficult as it could be. It's just that to do metal analysis you don't have to buy a whole analyzer unit, we personally took an ordinary portable spectrometer, for example, even this ProSpector 3 https://elvatech.com/applications/metal/ is suitable for such purposes. I don't know yet how durable it will be, but it works perfectly, we already tested it today and were able to determine very accurately in some parts of the metal harmful impurities, so it is suitable not only for the working process, but even for domestic use, if you deal with metals.
Edited by Petuhin
10/28/2020 09:15 am
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