Vtg Blaw-Knox Sprinkler Div PITTSBURGH PA Brass USG Air Retard Gauge Steampunk

Description

Vintage BLAW-KNOX SPRINKLER DIVISION, Pittsburgh, Pennsylvania Brass Air Retard Gauge.  Made by USG - U.S. Gauge 49 - 4017.  This steampunk gauge is brass with a silver face and metal fittings.
Face of the gauge is 3-3/4" in diameter.  It measures 9-1/4" long x 5-1/2" wide x 1-1/2" front to back and weighs 1 pound 10 ounces unpackaged.
The gauge has scuffs, scratch marks and finish loss.  The fittings are worn and used.  Being sold "AS IS."