I'm not seeing doubling, myself (and 2nd pic is too dark). Looks like there's a die crack on the SW corner of memorial.
There's a lot of glare in your pictures and because your coin is in a nice mint state, what you might be seeing is called "light doubling." That's basically when a light source casts shadows back onto the coin and it can often look like doubling.
Try rotating the coin and/or the light source and see if you see the same.