Penn Central Railroad diesel locomotive 7662 at New London, Connecticut on January 28, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Amtrak diesel locomotive 213 at New London, Connecticut on January 24, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200 at New London, Connecticut on January 24, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200, an F40PH EMD SN 757099-1 at New London, Connecticut in March 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 200, n F40PH EMD SN 757099-1 at New London, Connecticut in March 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train