Pics aren't clear enough to determine anything. Take the coins out of the holder to reduce the glare.
Take a picture of the area you suspect doubling through a 10x loupe, its pretty much the only way to determine unless the doubling is very obvious, which im guessing is not the case thus is why you are posting.
If you are using a flash on your camera, turn it off or cover it up. Put a light to the side of you and stand the coin up somehow and adjust it so when you look through your viewfinder and see no glare.