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1977 d penny error and 2014 virginia error
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6 posts in this topic

Welcome to the forum

Nothing there that would be considered an error, just damage.   
Remember, it is only an error if it happens during the striking of the coin.   
Anything that happens once the coin is ejected is considered damage.

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    Welcome to the NGC chat board.

    Neither of these coins appears to exhibit a mint error. The 2014-D Shenandoah quarter was most likely coated or painted with some substance, and the 1977-D cent may have been struck hard with a blunt object or subjected to high heat. Such events would have occurred after the coins left the mint.

   Contrary to what you may have seen on the Internet, it is highly unusual to find any coin with a significant mint error in circulation. Most such pieces are intercepted by bank or counting house personnel and sold to coin dealers before entering circulation, and in 2002 the mint instituted procedures that have kept most such pieces from leaving the mint in the first place.  It's O.K. to keep on looking, but don't expect to find anything of value.

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   If the quarter is thin and underweight, the likely explanation is that it was damaged by acid or some other corrosive chemical, which would also explain the weak, uneven lettering, odd looking surfaces, thin rims, and what appears to be some of its copper core showing through. If the reeding on the edge is weak or the coin is smaller than normal in diameter, these factors would also be indications of acid damage in these circumstances. See https://www.error-ref.com/acid-shrunk-coins/. (The official weight of a clad quarter is 5.67 grams, with a tolerance of 0.227 gram providing for a minimum weight of 5.443 grams.) This coin does not resemble an error coin of this type that would be underweight, such as one struck from a thin planchet or one missing part of the outer clad layer.  See https://www.error-ref.com/rolled-thin-planchets/https://www.error-ref.com/partial-clad-layer-before-strike/.

   The cent does not resemble any error that I have seen in over fifty years as a collector. The fact that the anomaly is on both sides and shows the struck design underneath indicates that it did not occur when the coin was struck. 

     The study of mint errors is an advanced topic in numismatics that requires background knowledge, especially of how coins are manufactured.  The error-ref.com site to which I have referred is fairly comprehensive but may be difficult to understand without some background and experience.  For generally correct information about mint errors at an introductory level, see the following:   

Learn Grading: What Is a Mint Error? — Part 1 | NGC (ngccoin.com)

Learn Grading: What Is a Mint Error? — Part 2 | NGC (ngccoin.com)

Learn Grading: What Is a Mint Error? — Part 3 | NGC (ngccoin.com)

Learn Grading: What Is a Mint Error? — Part 4 | NGC (ngccoin.com)

Variety vs. Mint Error | NGC (ngccoin.com)

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Hello and welcome!

I agree with the others. I see no errors. Only severe damage to both coins. 

Thank you for providing good pictures though! Most people posting for the first time do not provide adequate photos.

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