Builder photo of Construction Number 1201 showing right side of Oregon-Washington Timber and Railway Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in May 1910. This locomotive was used for logging near Cruzette, Washington. Photograph by Schauble.

Builder photo of Construction Number 1159 showing right side of Oregon-Washington Logging Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania in April 1909. This was used for logging near Cruzette, Washington. Photograph by Schauble.

Builder photo of Construction Number 1148 showing right side of Oregon-Washington Logging Company 39 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania in November 1908. This locomotive was used for logging at Glacier, Washington. Photograph by Schauble.

Builder photo of Construction Number 1153 showing left side of Oregon Timber and Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in January 1909. This was used for logging out of Clifton, Oregon. Photograph by Schauble.

Builder photo of right side of Construction Number 1488 showing Ohio Match Company 50 Ton, Two Truck Heisler Geared Steam Locomotive Number 10 at Erie, Pennsylvania, August 1923. This locomotive was used for logging near Burnt Cabin, Idaho. Photograph by Schauble.

Builder photo of Construction Number 1502 showing right side of Ohio Match Company 90 Ton, Three Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, June 1924. This locomotive was used for logging near Ohio Junction, Idaho. Photograph by Schauble.

Builder photo of Construction Number 1383 showing right side of O.G. Leach Hardwood Lumber Company 26 Ton, Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania, February 1919. This locomotive was used for logging near Lottie, Louisiana. Photograph by Schauble.

Builder photo of Construction Number 1380 showing right side of O'Connell Lumber Company 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, September 1918. This locomotive was used for logging near Winlock, Washington. Photograph by Schauble.

Builder photo of right side of Construction Number 1490 showing Oakland Lumber Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, March 1923. This locomotive was used for logging near Orgas, West Virginia. Photograph by Schauble.

Builder photo of Construction Number 1200 showing left side of Nusbaum Chemical Company 18 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in March 1910. This locomotive was used for logging near Bradford, Pennsylvania and the wood was used to make wood alcohol, acetate of lime and charcoal. Photograph by Schauble.