Antique Pneumatic Temperature Regulation Panel by Johnson vintage simulators original porcelain-and-brass pulls

original porcelain-and-brass pulls

in doing so

Re-Flec-To-Graph Sign Co

JP - 13172 - 042325

MM - C-10398 - 081624

Antique Pneumatic Temperature Regulation Panel by Johnson vintage simulators original porcelain-and-brass pullsc. 1910s 1930s; Johnson Service Company New York A handsome early pneumatic control panel from the Johnson System of automatic temperature regulation one of the foundational technologies that shaped modern HVAC control. Housed in a solid wood case with dovetailed construction, the panel incorporates a large Johnson Service Company air pressure gauge, two manual dial controls labeled Open and Closed, and a metal maker's plate detailing the system's