1980.  Equipment Requirements. Contributed by Steve Cichorsky.

1980.  Numbering, Dialing, Switching. Contributed by Steve Cichorsky.

October 1928,  "Principles of Electricity Applied to Telephone and Telegraph Work" extract includes pages 90 - 109 and the following sections:  

76.The Telephone Receiver
77. The Telephone Transmitter
78. The Polarized Ringer
79. Plugs, Jacks and Cords
80. Resistances
81. Switchboard Keys
82. Relays
83. Operation of Toll Central Office Circuits in Establishing a Long Distance Connection - No. 1 Switchboard
          Figure 168 - Typical Long Distance Terminating Connection. Open Wire Circuit - No. 1 Switchboard.
84.Operation of Toll Central Office Circuits in Establishing a Long Distance Connection - No. 3 Switchboard
     Plate V - Toll Operating
          Figure 168A - Typical Long Distance Terminating Connection. Four Wire Cable Circuit - No. 3 Switchboard.

Contributed by Steve Cichorsky.

From "The Principles of Electricity Applied to Telephone and Telegraph Work,"AT&T, 1961 edition.  Submitted by Steph Kerman

From "The Principles of Electricity Applied to Telephone and Telegraph Work,"AT&T, 1930 edition.  Submitted by Steph Kerman

Article from WE Magazine Nov-Dec 1953 - about the DEW line project:

"On the northern fringes of the continent W.E. has built the first units of America's Distant Early Warning Line"

WE Magazine Nov-Dec 1953. Centralized Automatic Message Accounting.

WE Hawthorne Works, The Microphone, April, 1973

Employee publication for the Hawthorne Works. Highlights include WE-Line phones, ANI D - Automatic Number Identification, Explaining WE to Friends, and the 1973 Hello Charley finalists. Contributed by Steve Cichorsky. OCR and Bookmarks by Paul Fassbender.

May 1978. Hawthorne Works, Chicago. Contributed and bookmarked by Steve Cichorsky. OCR and processing by Paul Fassbender.

One page publication: 'How a Small Telephone System is Operated'

From "Western Electric News," page 3, January 1, 1913.

Explains how a magneto switchboard works, tells about jacks, plugs, cords, drops etc.

8 pages. Contributed by Steve Cichorsky.

1943.

Photo of parts with detailed subtotals and chemical contents.

November 28, 1942, Telephony (special issue).  "World's biggest PBX" serves 20,000 phones.  Only 10 jacks per 100 lines.  (Contributed by Steve Cichorsky.)

Aids for Special Needs

Mountain Bell's Special Needs Center; Denver Colorado

The services and equipment described in this booklet were
specially designed to help make telephone use easier for our customers
with a hearing, speech, sight or motion impairment.

22 pages. 1970 i2. Telephone Communication Systems V1 - Early Systems and Station Equipment, Chapter 3. Contributed by Steve Cichorsky.