2016 Lincoln Cent Mule?

Appears to have been squeezed with another coin in a vise. The rim of the other coin left the indentation.

that this is not a mule. just a post mint attempt to create an error. 2 coins pressed into a vise created this one. On the right side of the coin just above the indented curve you can see a letter that is pressed into the field multiple times. That letter is reversed indicating that a coin was pressed against it.

@dead, I agree with the others that the arc-shaped damage is not a mint error. This one is a spender.

When you see the rim transfer on a coin, you know instantly that it is a damaged coin. On an off center, you will see not rim edge on them:





Not on these mint errors there is not rim on the coin? Why not? Because the planchet was not in the collar. The die and the collar create the normal rim we see on the edge of a coin. Also the collar creates flat edge or reeds on the edge of a coin. (Depending on the denomination) So when you see the edge lines like the coin above across the surface of the coin, it was transferred not from a die, but from another coin. The first clue that this is not a mint error. The second clue would be mirrored devices and directions of the design. So when you see the lines, know that the coin was normal, but was altered to make if look like a mint error. Why was it put in circulation. Probably the creator of this "So Called" error, realized it would not past the test, so what to do with the coin? Spend it!

CoopHome: What to look for on a damaged coin or a mint error coin to be sure what it is?