Under "OF AMERICA" it looks like doubling. I'm pretty new to this, so anything is helpful. Thank you. Marty
Die deterioration doubling but not hub doubling which would be a doubled die. On modern nickels most of the true hub doubling has been found in the main door of Monticello, left and right inside and at the triangle above the door. Therefore yours is not a true error, just a worn out die causing this.