Dancing 1937 Buffalo Nickel Paramagnetic Super Cool

Fifty years ago is only 1971, that coin had already been around for 34 years before that. That was a prime time for coins to be plated or tampered with. I remember tons of ads when I was a kid for polished and plated coin sets for sale. It definitely did not come from the mint like this but if you are sure, put up your money and have it slabbed.

I'm sorry, but for lack of a better term, this statement is a bit. ignorant. Like many times before you, you've posted something to share/asked for opinions, and some very knowledgeable people gave they're input, and didn't hear what you wanted to hear.

To a collector, this coin is a one look problem, not saying it's necessarily fake, but without a doubt is not a proof, rarity, nor did it leave the US Mint that way. It may bring you and the family enjoyment and that's great! That's what the hobby is supposed to do! But for the educational aspect of truly knowing what's what in regards to errors and an altered coin/fake, it's the latter.

As John1 suggests, if you're confident it's a rarity, send it in for grading, prove us wrong. and if you do prove us wrong I'll pay your submission costs.