Does anyone know why the Amtrak F40PH units in the 270-279 series had black number boards with white numbers, while all other F40PH's had white number boards with black numbers?
Jerry, 270 had black when delivered and white by 1991. from what I can see on http://rrpicturearchives.net/locoList.aspx?id=AMTK&mid=126 as delivered black. Phase 3 are white.