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 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.

Northern Pacific diesel locomotive number 175 at Eddystone, Pennsylvania. NP 175 is an AS 415 built by Baldwin in 1948. The NP renumbered this unit to 500 in 1950. A replacement Electro Motive Division of General Motors Company engine was installed in this unit in 1959. Photo by Baldwin Locomotive Works, J.M. Fredrickson collection. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific boxcar 7788, at Girard, Pennsylvania, July 1960.

Northern Pacific boxcar 97656, at Altoona, Pennsylvania, May 1967.

Northern Pacific boxcar 97667, at Ambridge, Pennsylvania, October 1965.

Builder photo of Construction Number 1106 showing left side of Northern Pacific Railway 52 Ton Two Truck Heisler Geared Steam Locomotive Number 4 at Erie, Pennsylvania in November 1906. The railway assigned this as a Class V-2 and was used to move logs on the Yacolt Branch at Yacolt, Washington. In the Northern Pacific locomotive book "Engines of Growth" the build date is listed as July 1907. Photograph by Schauble.

Builder photo of Construction Number 1106 showing right side of Northern Pacific Railway 52 Ton Two Truck Heisler Geared Steam Locomotive Number 4 at Erie, Pennsylvania in November 1906. The railway assigned this as a Class V-2 and was used to move logs on the Yacolt Branch at Yacolt, Washington. In the Northern Pacific locomotive book "Engines of Growth" the build date is listed as July 1907. Photograph by Schauble.

Northern Pacific steam locomotive 280 at Philadelphia, Pennsylvania, in 1883. Number 280 (old number series), built by Baldwin in 1883, poses for its builder's photo. Photo by Baldwin Locomotive Works, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 3010 is posed for a builder's phato at Philadelphia, Pennsylvania, in August 1907. Number 3010 is a class Z built by Baldwin in 1907 J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 4 at Erie, Pennsylvania in 1907. Number 4 is a class V-2 built by Heisler in 1907. Photo by Heisler, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 4 at Erie, Pennsylvania in 1907. Number 4 is a class V-2 built by Heisler in 1907. Photo by Heisler, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 603 at Philadelphia, Pennsylvania, in 1909. This is a builder's photo of Number 603 which was a class N-1 built by Baldwin in 1909. J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Builder photo of Construction Number 1113 showing right side of Northern Redwood Lumber Company 36 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania in January 1907. This locomotive was unusual as it was built to a gauge of 45 1/4 inches and was used for logging at Korbel, California. It was later changed to standard gauge in 1921. Photograph by Schauble.

Builder photo of Construction Number 1193 showing right side of Northern Redwood Lumber Company 36 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in February 1910. This locomotive was unusual as it was built to a gauge of 45 1/4 inches and was used for logging at Korbel, California. It was later changed to standard gauge. Photograph by Schauble.

Builder photo of Construction Number 1447 showing right side of 45 1/4 inch gauge Northern Redwood Lumber Company 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in January 1921. This locomotive was used for logging near Korbel, California. Photograph by Schauble.

Builder photo of Construction Number 1200 showing left side of Nusbaum Chemical Company 18 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in March 1910. This locomotive was used for logging near Bradford, Pennsylvania and the wood was used to make wood alcohol, acetate of lime and charcoal. Photograph by Schauble.

Builder photo of right side of Construction Number 1490 showing Oakland Lumber Company 32 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, March 1923. This locomotive was used for logging near Orgas, West Virginia. Photograph by Schauble.

Builder photo of Construction Number 1380 showing right side of O'Connell Lumber Company 40 Ton, Two Truck Heisler Geared Steam Locomotive Number 7 at Erie, Pennsylvania, September 1918. This locomotive was used for logging near Winlock, Washington. Photograph by Schauble.

Builder photo of Construction Number 1383 showing right side of O.G. Leach Hardwood Lumber Company 26 Ton, Two Truck Heisler Geared Steam Locomotive Number 5 at Erie, Pennsylvania, February 1919. This locomotive was used for logging near Lottie, Louisiana. Photograph by Schauble.

Builder photo of Construction Number 1502 showing right side of Ohio Match Company 90 Ton, Three Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, June 1924. This locomotive was used for logging near Ohio Junction, Idaho. Photograph by Schauble.

Builder photo of right side of Construction Number 1488 showing Ohio Match Company 50 Ton, Two Truck Heisler Geared Steam Locomotive Number 10 at Erie, Pennsylvania, August 1923. This locomotive was used for logging near Burnt Cabin, Idaho. Photograph by Schauble.

Builder photo of Construction Number 1153 showing left side of Oregon Timber and Lumber Company 42 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in January 1909. This was used for logging out of Clifton, Oregon. Photograph by Schauble.

Builder photo of Construction Number 1148 showing right side of Oregon-Washington Logging Company 39 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania in November 1908. This locomotive was used for logging at Glacier, Washington. Photograph by Schauble.

Builder photo of Construction Number 1159 showing right side of Oregon-Washington Logging Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania in April 1909. This was used for logging near Cruzette, Washington. Photograph by Schauble.

Builder photo of Construction Number 1201 showing right side of Oregon-Washington Timber and Railway Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in May 1910. This locomotive was used for logging near Cruzette, Washington. Photograph by Schauble.

Builder photo of Construction Number 1352 showing right side of Oval Wood Dish Company 63 Ton Two Truck Heisler Geared Steam Locomotive Number 1 at Erie, Pennsylvania, January 1917. This locomotive was used for logging near Kildare, New York. This company in May 1920 became the Oval Wood Dish Corporation. Photograph by Schauble.

Builder photo of Construction Number 1368 showing right side of Oval Wood Dish Company 63 Ton, Two Truck Heisler Geared Steam Locomotive Number 2 at Erie, Pennsylvania, January 1918. This locomotive was used for logging near Kildare, New York. This company in May 1920 became the Oval Wood Dish Corporation. Photograph by Schauble.

Overhead view photo from the rear of a Heisler three truck locomotive with a diamond type frame with motor installed and waiting for the boiler at Erie, Pennsylvania. Photograph by Schauble.

Builder photo of Construction Number 1172 showing right side of Pacific and Eastern Railway 42 Ton Two Truck Heisler Geared Steam Locomotive Number 101 at Erie, Pennsylvania in November 1909. This locomotive was used in logging near Raymond, Washington. Photograph by Schauble.