Builder photo of Construction Number 1171 showing right side of Emporia Manufacturing Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 10 at Erie, Pennsylvania in October 1909. This locomotive was used in logging near Emporia, Virginia. Photograph by Schauble.

Builder photo of Construction Number 1451 showing right side of 42 inch gauge Emory River Lumber Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 10 at Erie, Pennsylvania, March 1921. This locomotive was used for logging near Gobey, Tennessee. Photograph by Schauble.

Builder photo of Construction Number 1546 showing right side of Elk River Mill and Lumber Company 28 Ton, Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania, February 1927. This locomotive was used for logging near Falk, California. Photograph by Schauble.

Builders photo showing right side of Electric Shovel Coal Corporation 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 9 at Erie, Pennsylvania, 1928. This locomotive was used for mining coal near Clinton, Indiana. Photograph by Schauble.

Builders photo showing right side of Electric Shovel Coal Corporation 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 8 at Erie, Pennsylvania, 1928. This locomotive was used for mining coal near Clinton, Indiana. Photograph by Schauble.

Builders photo showing right side of Electric Shovel Coal Corporation 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, 1928. This locomotive was used for mining coal near Clinton, Indiana. Photograph by Schauble.

Builders photo showing right side of Electric Shovel Coal Corporation 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania, 1928. This locomotive was used for mining coal near Clinton, Indiana. Photograph by Schauble.

Builder photo of Construction Number 1284 showing right side of Elbe Lumber and Shingle Company 52 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, June 1913. This locomotive was used for logging near Elbe, Washington. Note that axle on the front truck is raised up to show flexibility of the truck. Photograph by Schauble.

Builder photo of Construction Number 1526 showing right side of E.L. Bruce Company 36 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, February, 1926. This locomotive was used for logging near Oak Grove, Louisiana. Photograph by Schauble.

Builders photo of Construction Number 44 showing right side of E.I. DuPont de Nemours and Company 75 ton, 0-6-0 Heisler Fireless Steam Locomotive Number 2 at Erie, Pennsylvania, November 1938. This locomotive was used at Belle, West Virginia. Photograph by Schauble.