Its a 1982-D Large Date and could be either copper or zinc depending on the weight. There are actually 7 varieties for 1982 Lincoln cents plus the single proof (1982 S) is a Large Date Copper Proof only 3.11g. You will notice from the image that its only the 1982-D small date that is only in zinc, and so if found on copper its a rare error with only two or three examples found. The others all can be found on BOTH zinc and copper planchets normally and only valuable in certain cases like a very high grade such as if you look at PCGS or NGC website price guide for the highest grades, or has some other reason like its another variety or error. Copper weight around 3.11g while Zinc weight around 2.5g.

Edited by datadragon
06/15/2023 9:49 pm