Perfex Series 155 Magic Dial Thermostat
Here are photos of a circa-1944 Perfex Series 155 Magic Dial Thermostat, as well as the instruction manual.
How Should the House Be Heated?
What can be done to disguise the radiator and register? This article is from The House Beautiful magazine. There is no date, but it is most likely the late-1910s or early-1920s.
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