Hey, so I was sorting a bunch of pennies out of 50 or so I found about 20 pennies with I guess its called either Weak Strike or Strike through /grease errors. Only about 5 of the coins are like this one, the rest are various letters hardly visible. I also have a nickel like this. Well my question is, out of 50 +- pennies from pocket change, I got 20, is it that common of an error or was i just lucky to find so many at one time? A second question is why are these error only really noticeably found on the reverse in the letter on the top, in this case United States Of America?
1) Yes, they are relatively common, but dramatic strike-throughs can command hefty premiums. I wouldn't necessarily consider anything similar to yours "dramatic". In fact, I'm not even sure that wasn't caused post-mint. 2) If all of the coins in a roll of cents were struck using the same die, then it is easy to assume that they would show similar strike-through characteristics depending on how long whatever object(s) came between the die and planchet during the strike.
I figured the coins were quite common, but they are from many different years, I looked closely and there doesnt seem to be any wear damage that would cause the faint lettering, but im sure that still could be. thanks though for the info. As for that Nickel, though its a bad pic, not close enough, id guess its post mint damage, looks like acid, or maybe electroplating, did it with a penny partially submerged and it did look similar. Try making a new thread and upload a better pic, possibly magnified and im sure you'll get some answers, good luck
Post mint damage. I bought 2 rolls of 1968-S (unopened) rolls, and when I opened them I found the obverse from coin A had heavily damaged coin B and vice-versa. Looks very similar to that.