This item is an antique brass pressure gauge manufactured by the American Steam Gauge and Valve Manufacturing Company of Boston, Massachusetts around 1920. Function: It was designed to measure pressure in pounds per square inch (LBS) for industrial applications, commonly steam boilers, hydraulic systems, or locomotives. Design Features: The gauge features a brass casing, a white face dial with black markings up to 2000 lbs, and a distinctive moon-shaped symbol often found on similar gauges from that era. This gage is antique and so may be scratched, dirty etc
