Somewhere around here (or maybe out at the old family homestead) I have some of the wartime funny pennies, they were not made out of copper either. :’) Also have a colonial (or early republic) 3 cent piece, that appears to be iron or something.
I remember old black pennies, we called them lead pennies, when I was a kid, I was born in 1943. We knew they were somehow related to the war but not how.
I now think they were zinc.
It's probably silver.