OK, I'm stumped. The only metals I can think of that would cause a cent to jump a half inch to a magnet are pure nickel or an iron alloy. The coin is the same size as a cent so it is too light to be nickel (A specific gravity test would confirm that) but it would be reasonable for an iron alloy. A pure nickel plating heavy enough to allow it to jump that far I would expect to be so heavy there would be detail loss. I'm not sure if even a large rare earth magnet would cause a plated coin with an average thickness plating to jump that far.
I saw the video. That coin has to be some form of iron (steel) or pure nickel. The earlier pics look like a genuine (or very close) coin. I'm certainly intrigued.
I am beginning to think of a "Mint-assisted" error in this case.
In Memory of Crazyb0 12-26-1951 to 7-27-2020 In Memory of Tootallious 3-31-1964 to 4-15-2020 In Memory of T-BOP 10-12-1949 to 1-19-2024
I'd like to take this opportunity to address this, one of the many reasons WHY, and I think I've made my opinion known, that you guys don't be so quick to discount types and varieties based on bad pics coupled with what you might think you know to be fact....
New to this as I am not a collector. I have however set aside coins that appear to be out of the ordinary. What types of non destructive testing are used to authenticate a coin like this? Any recomendations?
Video suggests stainless steel or nickel plated steel to me.
Both metal compositions harder than copper plated zinc; this suggests that if normal striking pressure was used, then the detail on the coin should appear if it has been lightly struck. Compare striking detail with normal 1987 Cent.
Alloy composition can be found with XRF analysis, but for surface only. Take it to a bullion dealer or jewelry buyer; they should have a hand held instrument.
The problem is where would such a planchet come from? We stopped striking coins for other countries in 1984. On the other hand the cent planchet were from an outside supplier. It is possible they were also making planchets for some one else and one got mixed in with the planchets shipped to Philadelphia. It has been known to happen. Who it would be for I have no idea.
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Posted 05/17/2018 09:17 am
I'd send that to a 
