Here are pictures of my driveshaft off my 1970 Dearborn sportsroof, that just came out of an evaporust bath, showing various markings. Both ends of the driveshaft appeared to be red oxide-ish, and the transmission yoke end may have been completely yellow. My stripes in the middle were light blue, white? and yellow, with maybe a double brown stripe toward one end? (I thought it might be rust residue until I saw other pictures with stripes in that area).
Hope this is of some help.
Barry