Antique Central Automatic AIR Gauge‎ Brass 0–250 PSI U.S. Gauge Co Philadelphia

ANTIQUE CENTRAL AUTOMATIC SPRINKLER CO – AIR PRESSURE GAUGE – 0–250 PSI – BRASS  Condition:  Excellent antique condition with original patina. Glass intact. Dial shows age and discoloration consistent with a 90–100 year old gauge, with all text still readable. NON-FREEZING AIR 30 marking fully visible. Brass case shows oxidation and natural wear, adding to its industrial character. No cracks or structural issues.  ----------------------------------------  DESCRIPTION:  Rare AIR fire sprinkler gauge manufactured by Central Automatic Sprinkler Co. of Philadelphia, PA, with dial produced by U.S. Gauge Co., New York. Unlike the more common WATER gauges, AIR-marked gauges were used on dry-pipe sprinkler systems in cold environments.  Features include:   *             Solid brass case       *             0–250 PSI scale       *             NON-FREEZING AIR 30 red label       *             U.S. Gauge Co. mark       *             FM & U.S. approval marks       *             Heavy industrial patina       *             Early 20th century construction      Perfect for industrial décor, steampunk builds, wall-mounted art, firehouse displays, bars, breweries, lofts, or collectors of antique fire protection equipment.  antique AIR gauge, brass fire gauge, Central Automatic Sprinkler Co, U.S. Gauge Co, industrial décor, steampunk gauge, antique pressure gauge, dry pipe sprinkler gauge, 1920s gauge, Philadelphia PA