The New Haven's most powerful freight haulers were the 50 2-10-2 type locomotives of class L-1, supplied by ALCo in 1918. Their low 63-inch diameter drivers, combined with a boiler pressure of 200 p.s.i. and large 30x32-inch cylinders, resulted in a tractive effort of 77,800 pounds. They weighed a hefty 360,000 pounds, but the small inboard-journal trailing wheel detracted from their overall appearance of power. The group to which No. 3225 belonged, which featured Baker valve motion, had an 82-square-foot grate area plus 4443 square feet of evaporative heating service and 1115 square feet of superheating surface. A decade after delivery they profited from the installation of thermic siphons in the firebox, which increased their ability to produce steam. Their normal assignment was the freight line that crossed the Hudson River to interchange with connecting railroads at Maybrook, New York. Very late in New Haven steam operations, however, after being bumped from the Maybrook line by diesels, several of the L-1s were assigned to night symbol freights out of Boston. Views of them in this service are rare; happily, we have this image from Carl Weber's collection of No. 3225 at South Boston on May 17, 1948.