Farmall 400

Im buying a farmall 400 that is all original the sides of the hood have the white indents. I thought that the white sides were not factory but I have seen many photos of 400's with white on the hoods. Is there and explanation??
thanks
Noah

Someone wanted their 400 to look like 450. It was common if a tractor was repainted back in the 50's and 60's to give it the "updated" paint scheme.

Al