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

original porcelain-and-brass pulls

Blocks of this kind were used by newspapers and theatre presses to print advertisements and playbills

in doing so

light discoloration and wear present on the seat and backrest from use

Seat: 16" W x 16" D x 17" H

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