Polished Ps-4 By Angela Cotey | July 21, 2022 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Southern Railway 4-6-2 1395, one of the road’s class Ps-4 passenger engines revered for their handsome lines and green-and-gold livery, takes a passenger train out of Washington, D.C., in the late 1930s or ’40s. Walter H. Thrall photo