The ten Pacifics of class K6 entered service on the Boston & Albany in 1925 and 1926 as Nos. 590-599. In 1931, however, they were transferred to the Pittsburgh & Lake Erie after the J2 Hudsons displaced them in New England. On the P&LE they became Nos. 9245-9254. C. C. Bland of Pittsburgh snapped this photo of No. 9247, the former B&A No. 592, at McKees Rocks, Pennsylvania in September 1935. She was a member of the 1925 group, class K6a, erected by Alco's Brooks Works. These 4-6-2s had 75-inch drivers and 26x28-inch cylinders, and weighed 298,000 pounds. They had a boiler pressure of 200 pounds per square inch, and produced 42,900 pounds of tractive force, with a booster supplying 9,720 additional pounds. The K6 class served effectively in their new assignment until their retirement. They were regarded as a superior example of the Pacific type, and might have achieved more renown had they not been so quickly overshadowed by the more advanced 4-6-4s.