Inquiring about lamination. Or, if it's just that old. Weight isn't far off for the age so just asking.
Where do you think there is a lamination? I don't see one. Jefferson laminations are common, here is one of mine I've found in circulation a long time ago.
The reason for it being dark is because if I am not mistaken, it has 40% silver in it which turned it dark. This is known as a "War Nickel". Nice find!
It's just environmental exposure that caused the nickel to darken. The composition of a war nickel is 35% silver, 56% copper and 9% Manganese (A regular nickel is 25% Ni and 75% Cu).
Other than the lump on the reverse, which could be added material after the mint, I see no indication of lamination problems. A nice, worn, war time nickel.
