Builder photo showing left side of Northern Illinois Coal Corporation 55 Ton, Two Truck Heisler Geared Steam Locomotive Number 203 at Erie, Pennsylvania, 1935. This locomotive Photograph by Schauble. was used for coal mining near Wilmington, Illinois.

Builder photo of Construction Number 1554 showing right side of Northern Illinois Coal Corporation 42 Ton, Two Truck Heisler Geared Steam Locomotive Number 201 at Erie, Pennsylvania, November 1927. This locomotive was used for coal mining near Wilmington, Illinois. Photograph by Schauble.

Builder photo of Construction Number 1249 showing right side of North Texas Lumber Company 36 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania, March 1912. This locomotive was used for logging near Kildare, Texas. Photograph by Schauble.

Builder photo of Construction Number 1181 showing right side of North Texas Lumber Company 26 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania in January 1910. This locomotive was used in logging near Kildare, Texas. Photograph by Schauble.

Builder photo of Construction Number 1285 showing right side of North Bend Lumber Company 62 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, September 1913. This locomotive was used for logging near North Bend, Oregon. Photograph by Schauble.

Builder photo of Construction Number 1423 showing right side of Nickey Brothers, Incorporated 22 Ton, Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, January 1920. This locomotive was used for logging near Link, Arkansas. Photograph by Schauble.

Builder photo of Construction Number 1188 showing right side of Nibley Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, September 1910. This locomotive was used in logging near Meacham, Oregon. Photograph by Schauble.

Builder photo of Construction Number 1154 showing right side of New York and Pennsylvania Redwood Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania in February 1909. This was used for logging redwood out of Hardy, California. Photograph by Schauble.

Builder photo of Construction Number 1152 showing front of Nelson-Neal Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania in January 1909. This was used for logging out of Bryant, Washington. Photograph by Schauble.

Builder photo of Construction Number 1152 showing rear of Nelson-Neal Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania in January 1909. This was used for logging out of Bryant, Washington. Photograph by Schauble.