The Improved Webster Type "R" System of Steam Heating is a service bulletin from Warren Webster and Company (The Pioneers of Vacuum Steam Heating), established in 1888.
Consumers Research (1931)
This is a very early copy of what became Consumer Reports. It covers Heating and Ventilating, Lighting, Fire Extinguishers, and Building Materials. Great, unbiased insights into the popular methods used at the time.
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