Southern Pacific Alco RS32 4002, Bayshore Yard, San Francisco, California, May, 1970. Photographer: unknown
Southern Pacific Alco RS32 4001, Bayshore Yard, San Francisco, California, August 12, 1975. Photographer: unknown
New York Central Alco RS32 2038 at Mechanicsville, New York, September 10, 1969. Photographer: John R. Quinn.
ATSF Alco RSD15 9800, date and location unknown. Photographer: Stan Kistler
Ferrocarril del Pacifico Alco S6 702 in a builder photo at Schenectady, New York, June, 1955. Photographer: Alco
Ferrocarril Unidos de Yucatan Alco S6 301 in a builder photo at Schenectady, New York, November, 1960. Photographer: Alco
Alco RS27 Demonstrator 640-2 at Rutherford, Pennsylvania, January 22, 1960. Photographer: unknown.
Ferrocarril del Pacifico Alco RS11 501 at Guadalajara, Jalisco, December, 1966. Photographer: R.W. Biermann.
Erie Lackawanna Alco C424 2407, Port Jervis, New York, March 30, 1969. Photographer: Martin Zak
American Locomotive Company Alco RS11 DL701, location and date unknown. Photographer: Alco Products, Inc.
Lehigh & Hudson River Alco C420 24 at Bethlehem, Pennsylvania, April 9, 1966. Photographer: unknown.
Pennsylvania Railroad Alco RS27 2407, location unknown, July 4, 1967. Photographer: Martin Zak.
Nacionales de Mexico Alco RS1 5658 at San Luis Potosi, San Luis Potosi, August 9, 1974. Photographer: R.W. Biermann.
Nacionales de Mexico Alco RS1 5639 at San Luis Potosi, San Luis Potosi, August 14, 1964. Photographer: R.W. Biermann.
New Haven Alco RS1 0667, South Braintree, Massachusetts, 1960. Photographer: unknown.