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 Replies: 18 / Views: 2,641 |
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Pillar of the Community
 United States
8939 Posts |
I have what might be a modern proof I got from a coin roll. Compared to my MS-65 circulation strike 1971-S to this new one, the new one shows incredibly sharper detail identical to the proof version of the 1971-S. The only problem? It's BN. Is it possible for a proof penny to have circulated (without sustaining significant damage) have it's proof mirror coating to have worn off or lost its luster? Thanks!
I'll upload pic's when I get home around 4 PST today!
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Moderator
 United States
56855 Posts |
Yes it is possible,it is called an impaired proof. Will wait for pics. John1  |
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Moderator
United States
34441 Posts |
Lookin' forward to seeing that impaired proof @GC!
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Pillar of the Community
United States
4963 Posts |
 It's actually not uncommon- proofs get released all the time, and often circulate for a bit before someone with a sharp eye catches them. |
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Bedrock of the Community
United States
75042 Posts |
Yep, that's possible. Sometimes, proof coins will get released into circulation for awhile before being pulled out of circulation. This is called an impaired proof.
Errers and Varietys.
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Bedrock of the Community
United States
17884 Posts |
To receive enough wear to remove all of its mirrored surfaces it would probably grade F-12 or lower.
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Bedrock of the Community
United States
94367 Posts |
 to the CCF! |
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Pillar of the Community
 United States
8939 Posts |
Here's the catch overall. If it is an impaired proof it's going to be the first of it's kind. It has NO mink mark, which would be a completely new variety. What would be amazing is if we had 2 no-s varieties for the same year. What do you guys and gal's think? Pics are coming in an hr.
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Rest in Peace
10197 Posts |
Think it's a BS. You said the mirror fields were worn off, I've seen many Impaired proofs, really damaged and scuffed ones, the mirror finish is still VERY obvious. You probably have a nice early die state coin. Proofs also don't really "turn" brown, that patina is associated with a rougher finish. The theory is that the porous surface caused by an unpolished die for the Business strikes is the factor. A polished field of a proof, then being twice struck, compacts the metal more closely keeping contaminants from "hanging around" and having the same effect as a progressive discoloration.
Don't be going out and ordering that new Cadillac yet!
Edited by Crazyb0
05/04/2018 1:56 pm
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Pillar of the Community
United States
8715 Posts |
I think this may be a business strike from your description. The thing that makes me suspicious is the lack of mirror-like fields. But I'm still looking forward to pictures. Please make your pictures clear, and crop them to show only the coin. This helps us get a closer look at the surfaces. Quote:
Pics are coming in an hr. |
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Rest in Peace
United States
17900 Posts |
Pass that SilverDollar. |
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Pillar of the Community
United States
4963 Posts |
If there's no mintmark, there's practically no way it can be a proof (if there was a no S variety, it probably would have been discovered long ago). When I answered earlier, it sounded like you had a 1971-S, which could likely be a proof. It sounds now that it's just a well-struck business strike.
I'm still looking forward to photos, though.
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Bedrock of the Community
United Kingdom
18011 Posts |
Here's an example of a circulated Proof coin - a British 1927 halfcrown, mintage 15,000. This specimen would barely make a F grade in the UK.  Edited by NumisRob
05/04/2018 5:44 pm
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Pillar of the Community
United States
8939 Posts |
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Pillar of the Community
United States
8939 Posts |
The pics really do suck....
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Pillar of the Community
United States
1788 Posts |
Looks like a regular business strike to me, |
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Replies: 18 / Views: 2,641 |
Posted 05/04/2018 08:22 am
