With smaller-diameter 23½x30 cylinders and higher 84-inch drivers than the Milwaukee's earlier so-called "Baltics," the Milwaukee Road's 4-6-4s of class F7 compensated with a high 300-pound boiler pressure. They produced 50,300 pounds of tractive force and weighed 415,000 pounds without tender. For other specifications consult the commentary on the next page. This view of No. 104, taken in Milwaukee in October 1938, comes from the collection of Clifford "Mike" Southard courtesy of the Kishwaukee Valley Heritage Museum in Genoa, Illinois.