The prominent Elesco feedwater heater gives Pacific No. 4933 an impressive and powerful look in this photo taken by Robert Graham of St. Paul, Minnesota, somewhere on the "Big Four" before her 1936 renumbering from CCC&StL No. 6533. The last 4-6-2s delivered to the New York Central System before the appearance of the Hudson type, the engines of class K5 were powerful enough, exerting 38,600 pounds of tractive force, with a booster adding 9,950 pounds. They had a grate area of 68 square feet, 3950 square feet of evaporative heating surface, and 1150 square feet of superheating surface. No. 4933 began life as Pittsburgh & Lake Erie No. 9237 before her transfer to the Big Four. She was a representative of class K5b, built by American Locomotive Company in 1927. These engines had 79-inch drivers, cylinder dimensions of 25x28 inches, and a boiler pressure of 205 pounds per square inch. Like other members of this subclass, No. 4933 weighed 297,500 pounds. Although some of the K5 series had slightly differing specifications, this locomotive, which was retired and scrapped in 1952, can be taken as a good representative of the last group of 4-6-2s added to the Central's fleet.

Two K5b sisters, Nos. 4915 and 4917, received streamlined shrouds and disc drivers in 1936, as seen in a Gary Overfield photo in George Elwood's collection. As a result they weighed more than the other K5s, at 317,000 pounds. They powered the Detroit-Cleveland Mercury, later the Cincinnati-Chicago James Whitcomb Riley.