Someone already answered this same question for you on a separate thread. If there is nothing amazing about the coin, then it is worth one cent.
For the OP.... http://www.lincolncentresource.com/smalldates/1982.html I should probably post this to the other thread as well since someone thought we needed more than one...
You would have to provide a photo that it is the SMALL DATE 1982-D copper (coin on scale). The odds are almost infinite, that it is a LARGE DATE.
Just wait, we're all just jealous because we didn't find it. Yadda yadda. Same crap, different thread. It's almost enough to make a guy throw his hands up in disgust and walk away.
With the six other 1982 cents in BU condition their worth about $3.75 as a variety set. But it will cost you about $6.50 to put together the set so you can sell it for a loss. So it’s worth -$2.75