The Copper 1982 D mint small date is the rare one.. Only 2 have ever been discovered. https://www.numismaticnews.net/article/rare-1982-d-small-date-copper-found
I heard on YoohooTube that there is a Smarge date 1982 W missing W variety. I'll take pictures of mine later when it gets back from PCGSNGC.