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.
Montgomery Ward Heating & Air Conditioning Catalog (1962)
Here is a circa-1962 catalog from Montgomery Ward about their heating and air-conditioning systems. Thanks to John Mills for scanning and sharing this interesting brochure. Nice prices on the equipment!
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