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 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 .

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.

Builder photo of Construction Number 1434 showing right side of L.A. Cowan Lumber Company 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania, May 1920. This locomotive was used for logging near Reba, Mississippi. The name L.A. Cowan, Jr. was one of the officers of the company. Photograph by Schauble.

Builder photo of Construction Number 1167 showing right side of La Rue Mining Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania in August 1909. This locomotive was used in mining iron ore at Ironton, Minnesota. Photograph by Schauble.

Builder photo of Construction Number 1412 showing right side of Lake End Lumber Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, January 1920. This locomotive was used for logging near Lake End, Louisiana. Photograph by Schauble.

Builders photo of Construction Number 1407 showing right side of Lake Providence, Texarkana and Western Railway 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 410 at Erie, Pennsylvania, September 1919. This company was cotrolled by E. Sondheimer Company and this locomotive was used for logging near Sondheimer, Louisiana. Photograph by Schauble.

Builder photo of Construction Number 1506 showing right side of Lake Shore Stone Products Company 7 Ton, One Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, August 1924. This is the only known one truck Heisler built. The Lake Shore company went into receivership in 1926 and at some point the locomotive was returned to Heisler at Erie. The use of this locomotive is thought to have been in road construction. The Lake Shore company operated a limestone quarry near Sandusky, Ohio. Photograph by Schauble.

Lake Superior Terminal & Transfer Railway Baldwin 0-8-0 steam locomotive number 9 parked in the snow at Duluth, Minnesota, on April 27, 1950. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, switching locomotive.