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[SPECIFICATIONS]
- Brand System Contractor: Hodgman Mfg. Company (Taunton, MASS., U.S.A.)
- Instrument Manufacturer: Jas. P. Marsh Corporation
- Era: Circa 1930s / 1940s
- System Application: Fire Protection / Dry Valve Sprinkler Air Line
- Pressure Range: 0 to 250 PSI (Pounds Per Square Inch)
- Certifications Stamped: UL (Underwriters Laboratories) & FM (Factory Mutual)
- Casing Material: Heavy Cast Metal Shell with Polished Brass Bezel Rim
- Fitting Design: Male Threaded NPT Lower Vertical Stem Mount
- Face Inclusions: Integrated Lower Steel Stop Pin
[CONDITION DETAILS]
- Overall Grade: Pre-owned / Antique Industrial Surplus
- Mechanical Needle: Rests perfectly and flush against the zero stop pin; internal movement remains unbench-tested under live load.
- Glass Crystal: Front clear face crystal is entirely clean and intact with no cracks, splits, or structural fogging.
- Casing Patina: Beautifully weathered historic metal luster with minimal pitting or oxidation on the brass trim.
- Thread Connections: Bottom mounting threads are clean, straight, and fully ready to mount.
