The coins to which you refer as errors on normal nickel planchets are actually fakes, not errors. They were produced by a man named Henning, and are known as the Henning nickel counterfeits. The biggest flaw he made was 1944 nickels without mintmarks. ALL real 1944 nickels had mintmarks above the dome.
The way to tell a real 1944 nickel is if it has a mintmark above the dome - and none of those were minted in nickel. They are all part-silver in composition. Simple enough.
The way to tell a real 1944 nickel is if it has a mintmark above the dome - and none of those were minted in nickel. They are all part-silver in composition. Simple enough.



















