Builder photo of SP&S ALCO S-1 diesel locomotive Number 10 at Schenectady, New York in October 1941. Photo by the American Locomotive Company.

Builder photo of SP&S ALCO S-1 diesel locomotive Number 11 at Schenectady, New York in October, 1941. Photo by the American Locomotive Company.

Builder photo of SP&S ALCO S-2 diesel locomotive Number 25 at Schenectady, New York in December 1943. Photo by the American Locomotive Company.

Builder photo of SP&S ALCO RS-3 diesel locomotive Number 81 at Schenectady, New York in June 1953. Photo by the American Locomotive Company.

Builder photo of SP&S ALCO FA-1, 3,000 horsepower set Number 851 which consisted of 851 A-1 and 851 A-2. Photographed at Schenectady, New York in May 1948. Photo by American Locomotive Company.

Builder photo of 6,000 horsepower SP&S ALCO FA-2 6,000 diesel locomotive set Number 868 at Schenectady, New York in December 1950. Unit to the left is 868 A-2 followed by FB-2 868 B-2, FB-2 868 B-1, and FA-2 868 A-1. Photo by the American Locomotive Company.