Bidspirit auction | American Industrial & Steam Pressure

American Industrial & Steam Pressure Gauges - This assortment of industrial pressure gauges features examples from several notable American manufacturers, including Marshalltown, Ashcroft, and Ashton. The collection includes a specialized dual-scale gauge by Marshalltown Manufacturing Co. of Iowa for Freon, indicating both pressure from 30 vacuum to 300 psi and temperature from -30 to 140 degrees Fahrenheit. Another Marshalltown unit presents a black dial with a 0 to 200 scale and dual indicator pointers. A brass-faced gauge by Ashcroft Manufacturing Co., produced for The J.H. McLain Co. of Canton, Ohio, features an ornate needle and a 0 to 30 scale. A similar brass-dial gauge without a visible maker mark also utilizes a 0 to 30 scale. The group is further represented by an Ashton Standard Test Gage from Boston, calibrated for measurements up to 300. Materials include brass bezels, metal housings, and glass covers, with several pieces retaining their threaded mounting connections.