B&O midget electric By Angela Cotey | February 1, 2022 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Baltimore & Ohio box-cab electric No. 10 shifts cars on the constricted trackage near the Baltimore waterfront in September 1949. In 1954, after B&O shut down its trolley system, the little fellow retired to the B&O Railroad Museum. H. N. Proctor photo