is it possible for a circulation quarter be stuck on a proof quarter plancet?

is it possible for a circulation quarter be struck on a proof quarter planchet? I was opening a roll of grand canyon d quarters and cherry picking and I was almost blinded by this mirror field on the reverse of the coin and I compared it to the other quarters and it's the only one with this kind of shine all the others have that dull look to them but this is litterally like a polished mirror field...


what would something like that be worth and what are the chances of a mix up like that? does it happen somewhat and this is just a 1st for me?

 

Log in or Sign up to hide this ad.

Maybe a proof coin got mixed into the roll. Can you post a pic of that coin next to another one? TC

 

Is it a P,D, or S?

 

It would be more likely before 1968 because Philadelphia was striking both types. After 1968 it would be possible for cents and nickels, and after 1974 it becomes very unlikely. And if it did happen it would be on a coin struck in Denver. The reason is that planchets that are rejected for quality for proof production at San Francisco are sometimes shipped to Denver to be used for business strike coinage there rather than just destroying them.

 

How about the possibility that the planchet was was made for a business strike but was struck with a retired proof die?
Still a proofish surface but not good enough for a proof coin?

 

I would think this is almost certainly the case.

 

When did the proof coins begin to be struck in West Point?

 

What's a proof planchet doing in Denver?

 

I believe the only proofs struck at West Point have beenbullion coins and some commemoratives.

Proof planchets that are rejected for quality are sometimes sent to Denver for use in business coin production.

Well he didn't mention what date and mint it was, but if it was recent retired proof dies, at least obverse, would not be used for business strikes. Retired reverse dies might be a possibility but that would result in a one sided "proof".

Now years ago, especially in the 19th century proof dies were sometimes used to strike business strikes. That is why on some series it is very difficult to tell proofs and MS business strikes apart.

 

definitely possible even tho I never seen one

 

It can't be graded as proof without BOTH the proper planchet and the proof method of production with extreme pressure and polished dies.

If a coin was produced with a 'retired' proof die, it would still lack the extreme pressure and proof planchet.
I don't see all of these things happening by accident, at the wrong mint no less.

Sounds like a rejected proof planchet to me... but it's just a guess.