It is
Machine Doubling as well. When you look very close to the top edge you can see the metal striations leving lines in that area. Just another die movement damaged coin.

Note the metal striations on the bottoms of the devices.
Looking a second time there does appear to be a split in the upper serif. But on the top of the mint mark I can see a hint of the striations.
Edited by coop
05/24/2012 01:00 am