1971 error coin?

[barndoor]

What is this type of error called and does it have any value it is a 1971

 

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[DanMcG]

What error? I'm curious, I don't really know much about coins

 

[barndoor]

What error? I'm curious, I don't really know much about coins

The upper left hand corner doesn't have the same finish as the rest of the coin

 

[Gulf Coast Pirate]

Is it on the other side too? If not, it could have had something laying on it and the exposed area came into contact with some chemical which caused it to change color.

 

[Blackfoot58]

Is it on the other side too? If not, it could have had something laying on it and the exposed area came into contact with some chemical which caused it to change color.

I would guess that’s what happened. It appears like staining/discoloration that could take place after being in circulation.

 

[Emil W]

The copper layer could be missing, meaning the planchet could be defective.

 

[barndoor]

I would guess that’s what happened. It appears like staining/discoloration that could take place after being in circulation.

Here is image of the obverse

 

[l.cutler]

That is just stained. There is no copper layer in the mid 1982 and before brass cents, so it can't be that.

 

[Emil W]

That is just stained. There is no copper layer in the mid 1982 and before brass cents, so it can't be that.

Agreed. I somehow missed the 1971 date.