The Milwaukee bought two 70-ton, 3,000 volt steeplecabs from GE for April 1917 delivery; numbers 10050-51 (c/n 5478-5479) truly stretching the definition for interurban-style locomotives. These (and two more on another order) were the only examples of domestic common carrier units operating under 3,000 volts overhead. Built to switch mainline yards, they would be renumbered to E80 and E81 in 1939 and would survive until the end of electrification in 1974.