Builder photo of Construction Number 1343 showing right side of Holmes and McDaniel Ton Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, July 1916. This locomotive was used for logging at Albany, Georgia. Photograph by Schauble.

Builder photo of Construction Number 1415 showing right side of Holly Ridge Lumber Company 22 Ton, Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania, January 1920. This locomotive was used for logging near Holly Ridge, Louisiana. Photograph by Schauble.

Builder photo of Construction Number 1237 showing right side of Holley-Mathews Manufacturing Company 23 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, October 1911. This locomotive was used for logging near Greenville, Mississippi. Photograph by Schauble.

Builder photo of Construction Number 1261 showing right side of Hiwannee and Tombigbee Railroad 42 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, August 1912. This company was controlled by the Smith-Payne Lumber Company. The order was cancelled and the locomotive was sold to Poplarville Sawmill at Poplarville, Mississippi. Photograph by Schauble.

Builders photo showing right front of Hill and Suender Contracting Engineers 42 inch gauge, 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 13 at Erie, Pennsylvania, 1930's. This company stripped rock from coal mines at various locations and the company was headquarterd at Frackville, Pennsylvania. Photograph by Schauble.

Builders photo showing right side of Hill and Suender Contracting Engineers 42 inch gauge, 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 13 at Erie, Pennsylvania, 1930's. This company stripped rock from coal mines at various locations and the company was headquarterd at Frackville, Pennsylvania. Photograph by Schauble.

Builders photo showing right side of Hill and Suender Contracting Engineers 42 inch gauge, 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 10 at Erie, Pennsylvania, 1932. This company stripped rock from coal mines at various locations and the company was headquarterd at Frackville, Pennsylvania. Photograph by Schauble.

Builder photo of Construction Number 1369 showing right side of Hetch Hetchy Railroad 75 Ton, Three Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, February 1918. This locomotive was used for construction of dams and operated near Hetch Hetchy Junction, California. Photograph by Schauble.

Builder photo of Construction Number 1369 showing right side of Hetch Hetchy Railroad 75 Ton, Three Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, February 1918. This locomotive was used for construction of dams and operated near Hetch Hetchy Junction, California. Photograph by Schauble.

Builders photo of Construction Number 34 showing right side of Hercules Powder Company 40 ton, 0-4-0 Heisler Fireless Steam Locomotive Number 21 at Erie, Pennsylvania, March 1935. This locomotive was used in the explosives plant at Brunswick, Georgia. Photograph by Schauble.

Builder photo of right side of Construction Number 1475 showing Henderson Baker Lumber Company 28 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, March 1923.This locomotive was used for logging near Myrtlewood, Alabama. Photograph by Schauble.

Photo looking down on a Heisler two truck locomotive with a diamond type frame being assembled with motor installed and waiting for the boiler at Erie, Pennsylvania. Photograph by Schauble.

Photo looking down on a Heisler two truck locomotive with a diamond type frame being assembled with motor installed and waiting for the boiler at Erie, Pennsylvania. Photograph by Schauble.

Photo looking down on a Heisler three truck locomotive being assembled with motor installed and waiting for the boiler at Erie, Pennsylvania. Photograph by Schauble.

Photo looking down on a Heisler narrow gauge outside frame geared locomotive truck with gear covers and bolster removed at Erie, Pennsylvania. Photograph by Schauble.

Photo of Heisler Locomotive Works horse drawn parade float for parade at Erie, Pennsylvania. Photograph by Schauble.

Photo of Construction Number 5001 showing left side of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Perry Iron Company at Erie.

Photo of Construction Number 5001 showing left side of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Perry Iron Company at Erie.

Photo of Construction Number 5001 showing right front of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Hammermill Paper Company at Erie. Photograph by Schauble.

Photo of Construction Number 5001 showing left front of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Hammermill Paper Company at Erie. Photograph by Schauble.

Photo of Construction Number 5001 showing right side of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Hammermill Paper Company at Erie. Photograph by Schauble.

Photo of Construction Number 5001 showing left front of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Hammermill Paper Company at Erie. Photograph by Schauble.

Photo of Construction Number 5001 showing right side of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is being demonstrated at the Hammermill Paper Company at Erie.

Builders photo of Construction Number 5001 showing right side of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. Photograph by Schauble.

Photo of Construction Number 5001 showing right rear of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is undergoing performance testing by pulling a string of loaded hopper cars with testing by New York Central Railroad dynamometer car Number X8006 at Erie. Photograph by Schauble.

Photo of Construction Number 5001 showing officials posing by right side of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. The locomotive is undergoing performance testing by pulling a string of loaded hopper cars with testing by New York Central Railroad dynamometer car Number X8006 at Erie. Photograph by Schauble.

Builders photo of Construction Number 5001 showing right front of Heisler Locomotive Works 60 ton Diesel Electric Locomotive at Erie, Pennsylvania, 1931. Photograph by Schauble.

Photo looking down on a Heisler geared locomotive truck with gear covers and bolster removed at Erie, Pennsylvania. Photograph by Schauble.

Photo taken from the side of a Heisler geared locomotive truck at Erie, Pennsylvania. Photograph by Schauble.

Photo looking at the underside of a Heisler geared locomotive truck showing the brake cylinder and brake linkage at Erie, Pennsylvania. Photograph by Schauble.