It looks normal from what I can see. If it were a doubled die, then the area inside of the bust would be affected, not the edge of the bust:
Here you can see the area affected. Not the edge of the bust, but inside the bust area:

On your coin it looks like the outside edge of the bust is affected:

Note the difference? The area on the bust inside the edge of the bust. You have something like this coin:

Note the images on the right.