Columbia & Puget Sound Railroad steam locomotive AA Denny, a narrow-gauge 0-6-4, parked at Seattle, Washington, circa 1890. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive.

Builder's photo of Colorado Midland steam locomotive number 23, built for passenger service at Schenectady Locomotive Works in Schenectady, New York, in 1887. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, builder's photo

Colorado and Southern Railway steam locomotive 71, an 2-8-0 locomotive, circa 1932. J.M. Fredrickson collection. Other Subject Classes: steam locomotive

Colorado and Southern Railway steam locomotive 649 builder's photo at Philadelphia, Pennsylvania in 1906. 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

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

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.

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 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.

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