Coin damage

1918 penny: I'm assuming this is a post mint applied heat blemish,
what say you? New member.

 

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Yea, I can see that. Some people are weird. Not me though.
Oh! Welcome to the forum pal!!

 

I see a stain and wear, not certain if heat related. I mean, really, what can you expect after 107 years?

 

No way to say what actually caused it. The coin has been harshly cleaned, it might even have been a product of that.

 

That would be a Planchet issue.
Lamination crack right under the IGWT area.

 

You've definitely got the eye for errors, didn't even notice that I was focused on the stain on Lincoln's head!

 

The ring on Abe's face looks like a mark that can form while being soaked in a acidic solution. Caustic burn coloration.

 

Oh what a shame!! A beautiful lamination mint error from rim to rim through Lincoln’s face. Unfortunately the coin has been harshly cleaned and possibly soaked in some form of acid.
Welcome to CT.

 

Thank you, I like CT

 

Glad to hear that. We can be a bit abnormal at times but you can learn a lot here.