HELP.... What Did It to the coin

I disagree, I'm thinking die deterioration doubling. Still not worth anything, just the result of a worn out die.

The second coin looks like a tapered thin planchet. When they roll the ingots, at each end the metal strip tapers from a full thickness down to a thin edge. Those ends are supposed to be cut off and recycled but if they don't remove the whole tapered part you can have blanks punched from it that are full thickness on one side and thin on the other. These blanks are the full diameter so the handle just like the regular blanks, go through the upsetting mills fine and through the press feeding mechanisms. When the coins are struck the wll be fairly normal on one edge and weak on the other, but they will still expand in the collar and will have a reeded edge.

 

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I don't disagree. However, I'm still trying to get a handle on the "mitered edge." I can't see it in the photo, but from the drawing I gathered the second coin has reeds, yes, but they come to a point in the center of the copper core -- with the largest diameter at the center and the narrowest diameter at the edge of the obverse and edge of the reverse. I can't see that happening at the mint. I wish there were better photos of it.

 

I've never seen a collar clash before.