1978 quarter delaminating

Hello all, Any input would be great Plz see pic's. with a much closer look. it don't appear to be damage. but as of it is separating.
Thank you in advance for your time.

 

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PMD. It appears someone, with intent, tried to clean the coin or strip the cladding. Possibly environmental, but I think the former occurred.

 

Acid bath. The nickel is more resilient than the copper, and the core appears to recede from the edges.

 

One thing I for got to mention. which may or may not matter. Or make a difference of opinion. the diameter is a tad bit smaller.I'll upload a pic

 

Correct. or I should say I tend to agree. however there is still the egde lines on the copper???

 

Looks like an incredibly strong dip, like something that isn't made primarily to clean coins. It reminds me of the results obtained from an industrial rust stripper I use to clean up hinges and door knobs if the metal is left in the solution too long.

 

I have one that I received that had been bent. I taped it with a rubber hammer to flatten it. When I did it, the top layer popped off. It was not heated, or discolored. So, the clad must have been defective.

 

wow Ok both comments make cents. But it is kinda cool looking. the pic's just don't do justice. on a second Note. well not a note per say But another quarter. I was told just post mint damage. But .... if you look close and both sides. plus the fact of the die fill, as it lines up to the ring/circle. as if almost wrong parchment
and ring is other side as well...

 

May be best to start a new thread, but this "ring" on the bicentennial quarter is damage from a coin counter.

 

sorry still trying to nav.. through the site. But check this out as well ... Another Philly mint fill.. see the larger ring to the left?1981

 

Gotta love bicentenial quarters no matter what!

 

Not sure how to do that I 'll try under what label? and how should I title the thread ? lol

 

really ? How sure are you of that? sorry . just asking.

 

Could also be roll damage. Either way, PMD.

 

Another D mint mark die fill

 

Yea Ok ty very Much ... And yea love them Bic quarters lol

 

another D mint mark filled. lol I think I am gonna start a 3rd roll.

 

What do you mean by "mint fill" and "die fill"?

Also, 'parchment' is a prepared animal skin that the ancients used to write on. I think you meant 'planchet'.

 

1984 tiny P mint mark