Eastern Mass. St. Ry. 4387 (Boston Suburbs) at Seashore Trolley Museum
Both ends of #4387 are identical with controls at both ends, and the car has two trolley poles, one for each direction. The car also has doors on both sides. Even the seat backs can be flipped over at each end of the line. That means that the car does not need to be turned around at the end of the trolley line for the trip back!