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.

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.

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 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 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.

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.

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.

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 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 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 1495 showing right side of Homewood Timber Company 36 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, February 1924. This locomotive was used for logging near Uriah, Alabama. Photograph by Schauble.

Builder photo of Construction Number 1254 showing right side of Horse Shoe Lumber Company 62 Ton Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, June 1912. This locomotive was used for logging near River Falls, Alabama. Photograph by Schauble.

Builder photo of Construction Number 1464 showing right side of Howe Lumber Company 26 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, October 1922. This locomotive was used for logging near Lakeview, Arkansas. Photograph by Schauble.

Builder photo of Construction Number 1273 showing right side of Howze Lumber Company, Incorporated 36 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania, February 1913. This locomotive was used for logging near McLain, Mississippi. Photograph by Schauble.

Builder photo of Construction Number 1429 showing right side of I.B. Wilcox and Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, March 1920. This locomotive was used for logging near Burdette, Mississippi. Photograph by Schauble.

Builder's photo of Idaho & Washington Northern Railroad Baldwin 4-6-0 steam locomotive number 15 (construction number 31648) parked on a turntable at the factory in Philadelphia, Pennsylvania, circa 1915. Photo by Baldwin Locomotive Works, J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, builder's photo.

Builder's photo of Idaho & Washington Northern Railroad Baldwin 2-8-0 steam locomotive number 26 parked on a turntable at the factory in Philadelphia, Pennsylvania, circa 1920. Photo by Baldwin Locomotive Works, J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, builder's photo.

Builder photo of Construction Number 1524 showing right side of Indiana State Farm 32 Ton, Two Truck Heisler Geared Steam Locomotive, No Number, at Erie, Pennsylvania, August 1925. This locomotive was used on the state prison farm and was used for quarrying limestone near Greencastle, Indiana. Photograph by Schauble.

Photo of interior of Heisler Locomotive Works showing spare parts kept in stock at Erie, Pennsylvania. Photograph by Schauble.

Photo of interior of Heisler Locomotive Works showing spare parts kept in stock at Erie, Pennsylvania. Photograph by Schauble.

Builder photo of Construction Number 1549 showing right side of International Lumber Company 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, March 1927. This locomotive was used for logging near International Falls, Minnesota. Photograph by Schauble.

Builders photo of Construction Number 1594 showing right side of International Shoe Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 4 at Erie, Pennsylvania, November 1929. This locomotive was used for logging near Marlinton, West Virginia with the bark of the trees used for tanning leather. Photograph by Schauble.

Builder photo of Construction Number 1115 showing right side of Interstate Lumber Company 22 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania in February 1907. This locomotive has been noted as being used for logging at Bokoma, Oklahoma but this cannot be confirmed. Photograph by Schauble.

Builder photo of Construction Number 1291 showing right side of Issaquena Lumber Company 26 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, January 1914. This locomotive was used for logging near Issaquena, Mississippi. Photograph by Schauble.

Builders photo of Construction Number 1564 showing right side of J. Robert Bazley, Contracting Engineer 42 Ton Two Truck Heisler Geared Steam Locomotive Number 1564 at Erie, Pennsylvania, July 1928. This locomotive was used for stripping rock at coal mines and the company was located at Pottsville, Pennsylvania. Photograph by Schauble.

Builders photo of Construction Number 1613 showing right side of J. Robert Bazley, Contracting Engineer 36 Ton, Two Truck Heisler Geared Steam Locomotive Number 1613 at Erie, Pennsylvania, July 1933. This locomotive was used for stripping rock at coal mines and the company was headquartered at Pottsville, Pennsylvania. Photograph by Schauble.

Builders photo of Construction Number 1617 showing right side of J. Robert Bazley, Contracting Engineer 36 Ton, Two Truck Heisler Geared Steam Locomotive Number 1617 at Erie, Pennsylvania, July 1937. This locomotive was used for stripping rock at coal mines and the company was headquartered at Pottsville, Pennsylvania. Photograph by Schauble.

Builder photo of Construction Number 1419 or 1420 showing right side of James E. Stark and Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 18 at Erie, Pennsylvania, March 1920. This locomotive was used for logging near Osceola, Arkansas. Photograph by Schauble.