Builders photo of Construction Number 1565 showing right side of Cia Maderera de Durango (Durango Lumber Company) 80 Ton Three Truck Heisler Geared Steam Locomotive Number 4 at Erie, Pennsylvania, August 1928. This locomotive was used for logging near El Salto, Mexico. Photograph by Schauble.

Cincinnati & Southern 2-6-0 steam locomotive number 29 (the Chatanooga Choo-Choo) on display at the depot in Chattanooga, Tennessee, in July 1978. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, display

Cincinnati & Southern 2-6-0 steam locomotive number 29 (the Chattanooga Choo-Choo) on display at the depot in Chattanooga, Tennessee, in July 1978. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, display

City of Portland Steam Locomotive Number 6 with freight train, at Prineville, Oregon, 1949.

City of Portland Steam Locomotive Number 6 at Prineville, Oregon, 1955.

Builder photo of Construction Number 1555 showing right side of Clearwater Timber Company 90 Ton, Three Truck Heisler Geared Steam Locomotive Number 91 at Erie Pennsylvania, December 1927 This locomotive was used for logging near Lewiston, Idaho. Photograph by Schauble.

Builders photo of Construction Number 1574 showing right side of Clemons Logging Company 90 Ton, Three Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, November 1928. This locomotive was used for logging near Melbourne, Washington. Photograph by Schauble.

Builder's photo of Colorado & Wyoming Railway Baldwin 2-8-0 steam locomotive number 3 at the locomotive works in Philadelphia, Pennsylvania, circa 1900. Photo by Baldwin Locomotive Works, J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, builder's photo.

Colorado and Southern Railway steam locomotive 330 builder's photo at Philadelphia, Pennsylvania in 1903. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, builder's photo

Colorado and Southern Railway steam locomotive 373 builder's photo at Philadelphia, Pennsylvania in 1922. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, builder's photo