Interesting errors, Joe. Especially like the first 2: one highlighting Lincoln, and the other highlighting the Memorial.
Those are some nice examples. And can be considered Error coins, but not Mint Error coins. For me this is a factor to take into consideration. Things are changing all the time.
They actually are considered Mint errors. The Mint struck them and released those faulty planchets/coins into circulation, regardless if the Mint made the planchets or not. Paul Revere, when he was alive, used to own a company that made copper coining/planchet strips which were sold to the Mint. Flaws within those that were struck are also considered Mint errors the same way fully or partial copper-plated zinc planchets that come from Jardens Zinc Products are.
Some people think I put a drop of acid and stuck those two together. Notice how the area, pattern. and shape of the missing metal is almost visually, physically, and mathematically exact. Amazingly, I did nothong to them except give them a nice home.
No. Your Cent is obviously damaged. See how on Joe's Cents they have an upraised rim and your does not. That's because yours was put on a grinder after it left the Mint.
I do have a question about this penny here. 2010 d shield cent characteristics wise and how the luster looks and all looks genuine to me. weight is also 2.49 grams. Only thing I’ve been questioned about is the rim it still has copper. And it ends right before the edge of the coin which is all zinc and flows with the areas of the on the top and bottom of the obverse. I have link below of the coin in video showing its luster as well. And how the focal point where the light spans out is characteristc to that of a normal penny. https://www.facebook.com/share/v/5ynkAMosSW2p7tPw/?