This wonderful booklet is from The Hess Warming and Ventilating Co. of Chicago, IL. Along with it, you'll find a sales letter from George Hess to L.H. Burns, dated March 20, 1909, and an estimate sheet. Mr. Hess did a fine job.
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.
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
Here is the original Installation and Operating Instructions and Parts List for The H.B. Smith Company's Oil Fired Cast Iron Hot Water Boilers (No. OHB-13W). This is esti...