penny errors?

[Goes4ever]

I was looking thru my pennies and came across these, are these errors, or just nothing?
The 1982 looks like the mintmark is repunched or doubled? and the 1971's mintmark is so light it is almost not there?

 

[wirebender]

remember 82 there are so many stinking varieties I wouldnt' be surprised if it's something funny.

that's how most of the 71's i have are also, just that way..