well....

it looks like it was struck through grease. At the first picture I thought it was just wear but when I saw the second and third picture I knew it was just struck through grease or something like that, I have seen it on many coins this is one of the most of the design gone because of this type of "error" I have seen in awhile though. I dont think there is any vam#'s assigned to any grease struck through errors though so dont really know if it would carry a premium over a regular morgan of that date