No need to soak. Just lift a loose area and see the color under the plating. If copper colored, then it was a struck through plating from anther coin.


Note the foil ribbon on the surface of the coin:

If it is gray, then the plating was altered. So you will know either way.

Note on this one the rim burr broke off of the rim, exposing the gray zinc underneath.
CoopHome:
Struck on foil from another coin, what does that look like? (This can happen with planchets are crushed/broken before the strike or thought the strike)
Edited by coop
05/09/2022 12:56 pm