Could this be a No S 1990

I know they say no s is only in proof sets but those coins could get out into to public

 

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Imho, that is not a proof penny.
A proof cent has a mirror finish. While the details stand out.
I’m sorry but it is just a normal 1990 cent.

 

Look at a proof coin and you will see that this one does not resemble a proof at all. You simply are not going to find a no S proof in circulation.