somebody used emery cloth or some kind of file or polisher on the rim and edge of the coin exposing the core metal of the coin.
Does anybody around here hang out with error expert, o-ya, thats right I do (ken potter) Why would you think this is from the dryer, only water would make a coin look like that
Coins get stuck inside the fins that are inside the drums of commercial clothes dryers. (Like the ones at Laundromats) They tumble sometimes with groups of other coins and the constant contact of the coins inside the fin as the drum rotates causes the kind of damage that Rick showed us. On Copper-plated zinc cents, the coin is damaged in the same way but the zinc that is exposed at the edge folds over the faces of the obverse and reverse just like they are shown in the OP's post. Those who know me long enough know that my legacy in coins might turn out to be that I proved what "dryer coins" are and the coin in the OP's post is a post copper-plated (1982 and later) classic dryer coin" Have Fun, Bill
I have a 2004 lincoln cent, looks the same as thats one, and potter said its from the washer, I'll post photos tomorrow of it, maybe potter wrong, if that coins is as thick as my, noway the dryer could of made it thick, only the washer, minds about twice as thick as a regular one
The dryer damages the edge and makes it thicker. A coin would have to go through a thousand washes on its own to get that kind of damage in a washer. It's the tumbling of the coin inside the dryer fin that causes the edge to deform. I saw 50 of these come right out of a dryer in a Pennsylvania Laundromat. The technician gave them to me I have cents dimes, and quarters that are damaged in the same way. For those that search halves...some halves end up like this too but the damage there is caused by circulation through slot machines when the casinos still used to use halves.