N499MC 747-400 Atlas (Prestwick 13-12-01).
This Atlas 747 was towed into the Polar hanger to have it's ATLAS titles removed and you can see the white rectangular box effect on the fuselage.
I had to walk well down the fence line for this shot because it was sitting at a difficult angle so when I got to this spot the taxi light started to flash (you can see the glow) so a quick jog was needed to get back to the car before it taxied off for my lineup shots.