When I first saw these all I could think about was “Gangs of New York”
Sign reads: “Developed in Philadelphia in the late 18th and early 19th centuries, this engine style was pulled by hand to a fire. Pump handles (called brakes) and standing boards could be folded up to maneuver through crowded streets. With both extended, twenty or more fire fighters could operate the pumps, with teams working in short shifts.
Such an engine could throw about 100 gallons of water per minute on a blaze from 150 feet or more. Fire fighter directed the streams from a long nozzle on top, or though leather hoses attached to the sides. These pumpers used similar hoses to draw water directly from municipal hydrants and cisterns.”