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Valued Member
United States
484 Posts |
Since the weight of the 40% silver quarters is 5.75 how could you possibly tell the difference between a slightly overweight quarter and a 40% silver quarter with a mint mark error? For example I have this bicentennial quarter that weighs 5.8 g  What is one supposed to think about it? |
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Pillar of the Community
United States
1489 Posts |
The edge should show the mostly copper core, unless it has been plated in silver to try to pass it off as a mint-mark error. You're right though, in that there's only 0.08 grams difference between the clad quarter (5.67 g) and the 40% silver ones (5.75 g) -- within the margin of error to make it tough to differentiate the two.
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Pillar of the Community
United States
1667 Posts |
Really not sure I understand your question. A clad quarter is 5.67 grams +/- 0.227g tolerance.
the 40% silver quarters of 1975 and 1976 were 5.75 grams +/- 0.200g tolerance
1964 and earlier are 6.25 grams and +/- 0.194g tolerance.
Your scale says it weighs 5.80g.
so what's your question, is yours a overweight 40% silver quarter that's missing it's mintmark?
or is it a overweight clad quarter, that might be plated or messed with to bring it up 0.13g?
or does you scale need re-calibration and re-verification, or better precision to get an accurate weight when the numbers are that close to each other?
I'm not aware of there being an identified missing S Mintmark error bicentennial quarter, and it would be odd for one to turn up 45 years later as a first find. All of the 40% ones should have an S mintmark.
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Bedrock of the Community
United States
10635 Posts |
A 40% silver quarter dollar was created for the bicentennial, but it was only available in Mint or Proof sets. It was never in general circulation. That is how you tell the difference between a 40% silver quarter and a regular quarter. Missing the "S" mintmark? Highly unlikely. None have been reported, what makes you think yours is the first?  |
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Valued Member
 United States
484 Posts |
I didn't believe it was silver I was just curious about the subject. I was just using this quarter as an example of what I feel to be a confusing issue. And no my scale is calibrated properly
Edited by My2cent
01/05/2021 10:09 pm
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Valued Member
United States
484 Posts |
Halfamind, thank you for understanding what I was asking, I appreciate you not trying to make me feel like I am asking ridiculous questions. Some people in this community are not so nice about a question from left field
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Valued Member
United States
484 Posts |
One more thing I'd like to mention is there is a no s mint mark 40% silver bicentennial quarter just read the NGC story about it.  Edited by My2cent
01/06/2021 2:29 pm
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Valued Member
United States
181 Posts |
Here is a link for PCGS graded "no s" Ike. Seems like there were trial strikes, but this Ike is the only one known to survive. Not sure if this means it's possible for the quarters as well either. But the same guy that owns the Ike I seen had a 75 dime "no s" as well. Estimated PCGS value for Ike is 850k. https://www.PCGS.com/setregistry/my...21165/107416 |
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Valued Member
United States
484 Posts |
I have always kept all of my bicentennial quarters but strange enough, until very recently I have never weighed them. I have also found one that weighs 5.83g.    that's why I bring up this subject. There are reports of that type of coin but how to truly know the difference? That's a very baffling subject if you ask me Edited by My2cent
01/07/2021 10:40 pm
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Pillar of the Community
2145 Posts |
Quote:
One more thing I'd like to mention is there is a no s mint mark 40% silver bicentennial quarter just read the NGC story about it. Here is the article about that. An interesting read. Supposedly the coins were destroyed but you know how that goes. I doubt any of the No S coins from the ceremonial sets escaped destruction and into circulation. These sets had the Type one Ike in them. How the Type 2 No S Ike happened is any bodies guess. https://www.NGCcoin.com/boards/topi...-and-dollar/And with the silver and clad quarters being so close in weight you can probably throw the scale test out the window. |
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Pillar of the Community
United States
5830 Posts |
Compare it to a clad quarter, the silver quarter should have a different sound.
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Replies: 10 / Views: 14,655 |
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Posted 01/05/2021 4:55 pm
