Of course, it's not that simple as so many factors go into selecting a locomotive. The chart is dated 1962.
NOS RARE 1978 EMD Electro Motive General Motors Locomotives 100,000,000 HP Press
RARE EMD Electro Motive General Motors Locomotives 75th Anniversary Press Kit
Vintage NOS EMD Electro Motive Advertising Key Chain
NOS Full Size EMD Electro Motive Locomotive Dashboard Control Panel #4
NOS EMD Electro-Motive GM Locomotive Minneapolis St Louis Railway Age Cover 1958
NOS EMD Electro-Motive GM Locomotive Boston & Maine Railway Age Cover 1958