Posing in the same location as Consolidation No. 274, shown next, is Pere Marquette 2-8-0 No. 921. The engines of this class had a boiler pressure of only 180 pounds per square inch, but with 57-inch drivers and 25x30-inch cylinders they developed 50,300 pounds of tractive force. They weighed 214,000 pounds and had a 56-square-foot grate area. Their evaporative heating service totaled 2875 square feet and their superheater service 550 square feet. Tom Rock of T.D.R. Productions supplied this image, the original photographer of which is unknown.