Here are photos of a circa-1944 Perfex Series 155 Magic Dial Thermostat, as well as the instruction manual.
Exerter Radiators and Foot-Rest Radiators
Here is the Exeter Radiator and the Matthews' Radiator Foot Rests from the Walworth Manufacturing Company (1842-1892). Thanks to Frank "Steamhead" Wilsey for finding and scanning these. He writes, "The Exeter was a column-type radiator with non-standard dimensions and ratings. That page also includes footrests for pipe radiators - good for warming your feet after trudging home in the snow."
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Perfex Series 155 Magic Dial Thermostat
The American Society of Heating and Ventilating Engineers Guide (1929) - Hot Water Heating Systems and Piping
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