looks like a 0, I have the bottom of the zero arrowed out.
while looking at what I sent found another something. looks like a 2 and something else to the right of it. also I have found the 2008 which is including the 0 you see really good and the 8 ending up under the nose. then there is the 2 that I have arrowed out. Found a radius on the reverse from the U in United down to around the bottom of the building. like I said I need someone with a better set up to get all these pics good.
http://killians76.jalbum.net/2008d/