| Digital image from Kim E. Piersol original 35mm Kodachrome transparency. KCS had a long-standing practice of putting minimal markings on B units during all of the early diesel era. They generally didn't even say "KCS" or "Kansas City Southern," much less have a prominent unit number. The latter was usually very small and appeared in one lower corner of the locomotive's side. When the white livery was introduced in 1973, that practice continued for a few more years before large red letters "KCS" were applied. The B unit in the photo could be any of a number of KCS F3B's. To propose any particular number would be nothing but pure guesswork. |