Photograph of the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 6201, 2-unit diesel-electric on a mixed freight, stopped for photos on the Metlac Bridge over the Metlac gorge, near Orizaba, 10km from Cordoba, Veracruz, Mexico. This diesel is on its first time crossing test.

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 6205, 2-unit diesel-electric (2700 HP EMD's) with a 2700 HP electric helper on a freight train of tank cars crossing the Maltrata Mountains between Orizaba and Esparanza, Vera Cruz, Mexico. [6.6% grade in places]

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 6205, 2-unit diesel-electric (EMD), 300 km south of San Luis Potosi, Mexico. On right is NDEM locomotive engineer Teodomiso Juarez, at left is Robert T. Hair of EMD [GM Electromotive Division], in Mexico to train drivers.

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 6205, view over the top of the train as it ran at 60 km/hr down a 2.5% grade between Saltillo and Monterey, MX.

Photograph of the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 1001 & 1005 diesel-electric electric locomotives crossing the "Cumbres de Maltrata". "This train (are) come down on a 6-1/2% grade for east,, 256-kilometres from Mexico City. 2 units with a power of 5400 HP. Now we handle heavy load trains of Central America to United States always working by the Victoriy "Home Electrified"

Photograph of the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 1007 & 1011 diesel-electric electric locomotives double-heading a freight near Orizaba, Vera Cruz, MX.

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 1010 electric locomotive on a freight train, stopped for photos while running downgrade at the Cumbres de Maltrata, Vera Cruz state, MX.

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 212, 2-8-0 (BLW), extra 212 south near Metlac Gorge near Orizaba, Vera Cruz, Mexico. Locomotive arrived in Mexico Dec. 1946.

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) electric locomotive and crew at Wimmer Bridge located at the high mountain Alta Lus Station. The volcano in the distance is "Pico de Orizaba" with an elevation of 5620 metres.

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 6205, 2-unit diesel-electric (EMD) stopped at Galera, MX, station. On right is Fred M. Smith, of GM's Electrmotive Division, on left is T. Juarez. "I ran this engine between Orizaba and Esparanza (Mexico) up a 6.5% grade with 700 tons."

A photograph postcard showing the Ferrolcarriles Nationales de Mexico, or N de M (NDM or FNM) 1005, 2-unit diesel-electric on a freight extra, paused on an uphill climb as conductors compare watches, Cumbres de Laltrata, Vera Cruz, MX. [note flags on cab]

A photograph print showing the Mexican Railway (FCM) 64, 2-8-0, Monterey, Mexico.

A photograph print showing the Mexicano (FCM) 64, 2-8-0, Monterey, Mexico.