Only way I can learn is by seeking answers from those who have better knowledge than me...Thus far I've learned any penny after 1980 is not copper...so Im sure this 1987 on is not but whats with the doubling 8 and 7, the line over Trust and the Superman Curl on Lincoln's head?....Dye residue? The D is over Small or not?
Agree this is not doubled die! The switch to zinc happened during 1982 so there are still copper cents and zinc cents dated 1982. I recommend you purchase a Red Book! It will explain and answer a lot of your questions!