Builders photo showing right side of Haddock Mining Company 48 inch gauge, 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, 1930. This locomotive was used for mining coal near Silver Brook, Pennsylvania. Photograph by Schauble.

Builder photo of Construction Number 1262 showing right side of Hall and Legan Lumber Company 36 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, August 1912. This locomotive was used for logging near Morton, Mississippi. Photograph by Schauble.

Builder photo of Construction Number 1228 showing right side of Hall-Leftwich Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania, June 1911. This locomotive was used for logging near Morristown, Alabama. Photograph by Schauble.

Builder photo of Construction Number 1256 showing right side of Hall-Leftwich Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 4 at Erie, Pennsylvania, July 1912. This locomotive was used for logging near Morristown, Alabama. Photograph by Schauble.

Builders photo of Construction Number 47 showing left side of Hammermill Paper Company 95 ton, Heisler 0-8-0 Fireless Steam Locomotive Number 4 at Erie, Pennsylvania, 1939. This locomotive was used in the paper mill at Erie. Photograph by Schauble.

Photo of Construction Number 47 showing right side of Hammermill Paper Company 95 ton, Heisler 0-8-0 Fireless Steam Locomotive Number 4 with four flatcars of pulpwood at the Hammermill plant at Erie, Pennsylvania, circa 1939. Photograph by Schauble.

Builder photo of Construction Number 1517 showing right side of Harleigh-Brookwood Coal Company 36 Ton, Two Truck Heisler Geared Steam Locomotive Number 64 at Erie, Pennsylvania, March 1925. This locomotive was used for mining coal near Frackville, Pennsylvania. Photograph by Schauble.

Builder photo of right side of Construction Number 1472 showing Hattiesburg Saw Mill Company 63 Ton, Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania, January 1923.This locomotive was used for logging near Hattiesburg, Mississippi. Photograph by Schauble.

Builder photo of Construction Number 1518 showing right side of 36 inch gauge Hawley-McIsaac Coal Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 15 at Erie, Pennsylvania, March 1925. This locomotive was used for mining coal near Madisonville, Kentucky. Photograph by Schauble.

Builder photo of Construction Number 1303 showing right side of 36 inch gauge H.C. Johnson Company 23 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, June 1914. This locomotive was used for logging near Johns Wood, Michigan. Photograph by Schauble.