Builder photo of Construction Number 1393 showing right side of Lamb-Gray Lumber Company 24 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, April 1919. This locomotive was used for logging near Valley Park, Mississippi. Photograph by Schauble.

Builder photo of Construction Number 1366 showing right side of Larkins-Green Logging Company 53 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, October 1917. This locomotive was used for logging near Blind Slough, Oregon. Photograph by Schauble.

Builders photo of Construction Number 1588 showing right side of Lehigh Coal and Navigation Company 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 102 at Erie, Pennsylvania, July 1929. This locomotive was used for mining coal near Summit Hill, Pennsylvania. Photograph by Schauble.

Builders photo showing right side of Lehigh Coal and Navigation Company 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 106 at Erie, Pennsylvania, 1930. This locomotive was used for mining coal near Summit Hill, Pennsylvania. Photograph by Schauble.

Photo of Construction Number 1588 showing left side of Lehigh Coal and Navigation Company 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 102 at Summit Hill, Pennsylvania. The locomotive is working four air side dump cars that are being loaded with rock that is being stripped above the coal seam.

Builders photo of Construction Number 1582 showing right side of Lehigh Coal and Navigation Company 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 110 at Erie, Pennsylvania, June 1929. This locomotive was used for mining coal near Summit Hill, Pennsylvania. Photograph by Schauble.

Builders photo of Construction Number 1612 showing left side of Lehigh Coal and Navigation Company 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 113 at Erie, Pennsylvania, May 1932. This locomotive was used for mining coal near Summit Hill, Pennsylvania. Photograph by Schauble.

Builder photo of Construction Number 1553 showing right side of Lehigh Coal and Navigation Company 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 116 at Erie, Pennsylvania, October 1927. This locomotive was used for coal mining near Summit Hill, Pennsylvania.

Builder photo of Construction Number 1552 showing right side of Lehigh Coal and Navigation Company 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 117 at Erie, Pennsylvania, September 1927. This locomotive was used for coal mining near Summit Hill, Pennsylvania. Photograph by Schauble.