I recently noticed the recent Canadian penny was ferrous; it is copper plated, so it is not all copper if you smelt them.
The US pennies are no longer solid copper. They are now plated zinc.
I can remember, about 1962, getting a 1944 U.S. penny in some change, and remarking to my father that it wasn't copper coloured, but almost black. He told me that as copper was a metal in very high demand, because of the increased munition production in WWII, and that the U.S. Mint made pennies out of zinc for several years.
Hadn't heard of that, but I know there was a steel penny during the war.
My dad has been collecting 35mm canisters for years and years. I was looking through the bag a couple days and at the bottom I found a couple of Steel canisters.
How long has it been since 35mm has been sold in steel or aluminum canisters?
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