Builders photo of Construction Number 1404 showing right side of L.A. Cowan Lumber Company 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, August 1919. This locomotive was used for logging near Stephenson, Mississippi. Photograph by Schauble.

Kosmos Timber Company steam locomotive number 7, a three-truck Heisler, parked at the engine facility at Kosmos, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive .

Kosmos Timber Company steam locomotive number 7 a three-truck Heisler, parked at the engine facility at Kosmos, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive .

Kosmos Timber Company steam locomotive number 3, a three-truck Shay, parked at the engine facility at Kosmos, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive .

Kosmos Timber Company steam locomotive number 10, a three-truck Heisler parked at the engine facility at Kosmos, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive .

Kosmos Timber Company three-truck Heisler steam locomotive parked at the engine facility at Kosmos, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive .

Kosmos Timber Company three-truck Heisler steam locomotive parked at the engine facility at Kosmos, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive.

Builders photo showing right side of Knickerbocker Portland Cement Company Two Truck Heisler Geared Steam Locomotive Number 4 at Erie, Pennsylvania, undated. This locomotive was used for mining limetone near Hudson, New York. The locomotive gauge and weight are unknown. Photograph by Schauble.

Klondike Mines Railway narrow-gauge 2-6-0 steam locomotive number 1 on display outside the Dawson City Museum, Yukon Territory, circa 1950, built by Brooks in 1881. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, display

Klickitat Log and Lumber Company steam locomotive number 7 at Tacoma, Washington, circa 1970. Number 7, a Pacific Coast Shay built in 1929, in action on the Camp 6 tracks at the Point Defiance Park. Photo by Al Harris, J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, geared locomotive .