The damage on both sides of this coin make it clear what has happened: something (
PMD) has caused the coin to be bent nearly clean in half, folded over like a taco. The coin then got "unbent" and flattened again. The "giant crack" is where the coin was torn apart by being bent outwards; the corresponding seam on the other side is where it was bent inwards.
Given the amount of force you'd need to do this to a clad coin, it would be difficult to deliberately replicate. I'm thinking more "wood chipper" rather than "garbage disposal". But we see similar damage all the time on mediaeval silver coins, which are much thinner than modern coins and which were commonly folded around a piece of string in commerce.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis