Quote:
1981 S Proof uncirculated
Yes looks like you found a proof coin-well done! Technically speaking, coins are either proofs or business strikes and business strikes can be found either in uncirculated or circulated condition. Your proof coin saw a little bit of use in commerce and therefore is considered to be "impaired".
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz