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Up for sale is a fantastic piece of mid-century industrial engineering. This vintage pneumatic control panel served as the "brain" for a building's HVAC system, specifically designated for a "Room Stat Branch." The centerpiece is a crisp, American-made Jas. P. Marsh Corporation pressure gauge (0-30 PSI) originating from their historic Skokie, Illinois facility. The panel features a heavy-duty manual selector switch that toggles between #1 NITE and #2 DAY settings—a relic of the era before digital smart thermostats when buildings relied on air pressure to shift temperature setpoints.
The unit retains its original industrial patina, including handwritten markings and a weathered metal finish that makes it a perfect candidate for steampunk decor, industrial lamp building, or a technical collection. Please note. This is sold as is/for parts only. Has not been tested.

VINTAGE Jas P Marsh STEAMPUNK Hydraulic /PRESSURE 8.75” BRASS/CASE Tinius
$425.00
Vintage Jas. P. Marsh Pneumatic Day/Night HVAC Control Panel | Industrial Gauge
$99.99
Vintage Jas. P. Marsh Co Compound Pressure Vacuum Gauge 2 pc with Kerotest 513
$150.00
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