On the Copper plated Zincolns it is possible to have a planchet get broken and leave slivers of copper plating that get struck onto a coin:
This was laying on the surface of the coin, I left it there and put into a 2X2. But on the OP's coin the lamaintion can be a struck through debris and attach itself to the coin. (not by choice) These will be more rounded than a lamination. A lamination usually runs in a straight line because it is rolled onto the metal after the metal has cooled.
Because the metal is cooled and the debris which can be big on the copper stock, it get stretched and rolled onto the stock metal. Never really attaches, but when the blanks are cut and the upset rim is added (proto rim), it loosens the laminations and sometimes fall off the planchet before striking or after striking. If it falls off before, the planchet will be uneven in thickness:
Because the planchet is uneven, areas won't strike up because the planchet not being the same thickness.
If it falls off after the strike then the area will show the outline of the lamaination:
Notice how the peel off area shows a ghost image of the devices? That is how you can tell it is a lamination issue. On a struck though onto the coin like wire or something else, all evidence of what should be there will be totally gone:
The reverse will be normal as the shape is contained in the die:
If the coin was struck and something was squeezed onto the coin or altered the coin, it will push through on the opposite side, because it didn't happen during the strike.
Sometimes the coin will bend, telling us it was damaged.
But seeing how the coin is affected, tells us what it is. You just have to figure out by trial and elimination how it could happen. Incuse mark on one side, pushing out on the reverse = damage. Happened after the strike. 99% of the time the incuse marks on coins happened after the strike and are not a mint error. Just a damaged coin. If we see the metal affected in straight lines, then we consider if it is a lamination error. More circular in shape, perhaps a struck through debris. Just detective work to see what could of happened. Hope this helps. If I strayed away from what you wanted to know, ask another question. Sometimes the subjects inter lock. Other times the are an easy call. Just depends on what we can see and if the image is real clear, that helps even more.
CoopHome Laminations - foil - damage - peel
Posted 05/12/2020 10:03 pm
