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.
Scott Valve Company Radiators
The Scott Valve Company of Chicago printed this catalog in 1915 showcasing their radiators, along with radiator ratings. You'll find the Niagra radiator, the Triumph radiator, and the Nirad radiator.
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