Yeah, Struck Through Grease is pretty common, and is really noticeable on the 2005 nickels because they're so flat. It looks like it might have some rolling-machine damage on top of being Struck Through Grease. There was another thread about one of these recently, though it was only missing the "5" in the date. I happened to have one on hand at the time that was more greased so took a picture:

I usually throw them back because nice condition examples with clear, non-greased strikes are harder to find.

I usually throw them back because nice condition examples with clear, non-greased strikes are harder to find.



















