Error coin or Weak Strike or both?

I found this penny in my copper penny collection and noticed part of Abe is missing... is this an error coin and what’s it worth if so?

 

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Definitely not a weak strike.
It's an Overpolished Die issue.
Really no premium for that.

 

Is this done in the mint?

 

Yes overpolished die issues occurs at the Mint during the minting process but it is nothing major.

 

Still cool to have though? Or is it not worth keeping?

 

You can keep whatever you want. In my 36 years of collecting mint errors I have many minor issues that I have kept just because I enjoy them. Overpolished Dies, Misaligned Die strikes, plating bubbles.. No premiums but I like them. Others just toss them back into circulation.

 

Okay thanks!

 

X2

 

Is this another overpolished?

The “E” is completely missing

 

I say Greaser. Compacted grease used to wipe the Die during the striking of the planchets hardens in the incused areas of the lettering in the Die and does not allow the letters to form properly.
Common issue. No premium niether.

 

Okay.. thank you for your help!

 

Appears to be a greaser.

 

Is this one mint error as well or is it post mint?

 

It's struck through grease or debris but they are called greasers. It happens at the Mint but it's so common that they are not considered errors even though they are. It takes a really good one to be called a mint error.