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 Replies: 11 / Views: 1,832 |
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Pillar of the Community
United States
535 Posts |
How do you know the silver content of the 1967 silver coins? I've seen that there are some at .50 and some at .80. How can you tell the difference?
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Pillar of the Community
United States
4869 Posts |
I could be wrong, but I am guessing by weight.
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Rest in Peace
United States
2884 Posts |
On Kennedy half dollars from 1965 to 1970 the silver content was .400 and the copper content was .600. The net silver weight is .1479 of a troy ounce. I am not sure what you mean by .50 or .80. Just for the record the partial(%40) silver halves weigh 11.50 grams. The straight clad coins weigh 11.34 grams. Some 1971-d and 1977-d halves were struck in silver clad composition by accident. I hope this helps. Mike  |
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Valued Member
United States
246 Posts |
Mike, how rare are the 1971D silvers? I've seen probably more 1971 than any other year in my roll searches. Thanks
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Valued Member
United States
376 Posts |
I assume you are refering to canadian coins karrlot. Below is the weight and size for the ones that came in 50% and 80%
Quarter
1967-1968 5.05 g 23.88 mm 50% silver, 50% copper
1953-1967 5.83 g 23.88 mm 80% silver, 20% copper
Dime
1967-1968 2.33 g 18.034 mm 50% silver, 50% copper
1920-1967 2.33 g 18.034 mm 80% silver, 20% copper
Half Dollar
1967-1968 2.33 g 18.034 mm 50% silver, 50% copper
1937-1967 11.66 g 29.72 mm 80% silver, 20% copper
Hope this will help.
Madspec
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Pillar of the Community
Canada
965 Posts |
That helps for everything except the dimes. How do you know if you got a 1967 80% silver dime or a 50% dime? The weight and size are the same.
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Valued Member
United States
246 Posts |
So they made two different coins in the same year? That's craziness!
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Pillar of the Community
Canada
965 Posts |
As if that's not bad enough, Canada made 3 different dimes in 1968. (Well, the Philadelphia mint had to make one of the three.) One is 50% silver, and two are clad, but with different reeding, depending on whether they were made in Ottawa or Philly.
I would still like to know if there is a (non-destructive) way of telling a 50% dime from an 80% dime, since you can't do it by weight.
Edited by Topher
04/19/2007 9:16 pm
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Valued Member
United States
376 Posts |
I could not find anything else about the dime so I would assume that the only way would to find out is with a SWAG.  Scientific Wild Axx Guess I will keep looking though. Madspec |
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Pillar of the Community
Canada
965 Posts |
I believe you can tell by doing a specific gravity test, but I wouldn't know how to do one, nor do I think it would be worth the trouble. (At least in my case).
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Pillar of the Community
Canada
1472 Posts |
I think most dealers would use an average.65% for all 67 silver except the dollars.
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Valued Member
Canada
195 Posts |
I have talked about this in some other threads. There is no easy way to tell the difference between 50% and 80% silver coins.Zonad is correct,when dealers are buying they assume an even split between the two.
Bill
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Replies: 11 / Views: 1,832 |
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Posted 04/18/2007 11:38 pm
