I certainly never have and I doubt anyone on CT has either. I would be if they have. You can see it’s extra think and copper on one side, the side that covers the obverse design of a Buffalo Nickel. The first photo shows the reverse. At least it’s not a 3 legged variety. The second and third photos shows the thickness. The more I enlarged it the blurrier it became but it shows the 3 layers. The last photo also shows the 3 layers on this coin. It’s the Buffalo Nickel, another layer of a metal and the copper layer. I think the middle layer is hollowed out with copper layer over it. The copper is plastic, not metal. If I hold this with my index finger and thumb and press the copper side in towards the coin, it clicks. Yes, it makes a click noise. I’ve never seen anything like this except in toy clickers. I think it a riot and I can’t believe someone came up with this idea and built it. Do I have a million dollar coin if I put it on the bay? Lol
Not a jewelry bezel. The nickel is the exact size of this Buffalo coin and no signs of any bezel marks.
There is no copper layer. All nickels (except war nickels) are 75% copper and 25% nickel that were melted together into an alloy. It is not a clad coin, there's no layers. My point is that since it can't be a copper layer, you have to look for another reasonable explanation.
To me the clicking sound implies that there’s a latch inside and it’s supposed to flip open. So maybe the latch or whatever is frozen or broken. It seems like it’s some sort of locket or magicians coin. I wonder if spraying some liquid wrench type stuff in there would free it up.