What Happened On These Two Coins

Well...at least my guess is with the majority. I was thinking box cutter at first but then I thought that if it was a box cutter you would not see the design elements in the area that had been hit with the box cutter. So I went with struck through. Still not sure though. I thought struck through would show mainly in the field of the coin and not in the design elements. Waiting for the correct answer to be revealed.

The presentation of your images are 2nd to none. Now I'll go back and vote.

I believe that both coins have been cut. Slicing into a coin at an angle will produce a raised line of metal somewhat similar in appearance to a die crack or gouge. The left one looks like one continuous cut while the right one appears to stop and restart at CA.

I think it is a box cutter that did the damage. The razor sharp point can get into the tiny spaces and will push up the metal. Any struck through is, I believe, less likely to fall so neatly into the devices and taper at the ends so smoothly. Whether or not it is post mint damage depends on who had the box cutter.

looks like a struck through

I voted rim bur,,dont even know what that is,,just didnt like the others,,can someone school me on a rim bur?thanks,,

Not a sharp, pointy tool like a box cutter or X-Acto knife. That argument goes equally for struck through a wire or similar object. A struck through should not result in raised edges. mrh70's experiment is a great tool. Put up a hypothesis, test it, and examine the results. A box knife produces results much like the coins shown. Doesn't mean that it had to be a box knife, but it does mean that it can't be ruled out without more information. By the way, don't use a box knife to get coins out of those plastic bubbles that the mint uses on uncirculated sets (see above examples of what can happen if you mess up, which if you are me, happens almost every time).