Excellent condition, very clean, knobs and nuts move freely. Heavy brass welding valve signed "The Matheson Co., East, Rutherford, J.J. Joliet, Illinois, Forged, Serial F8662". The gauge with the brass case is an Airco marked "Use no oil, Air Reduction, New York". The other gauge with the metal casing is a Matheson marked 'East Rutherford, J.J., Joliet, Illinois, Use no oil". Both gauges have thick glass lenses. Great piece for your vintage welding station or to use in your steampunk project.