Volume 1 — List of Photographs
Reading edition
A TYPICAL SMALL MAGNETO SWITCHBOARD INSTALLATION
A TYPICAL CENTRAL OFFICE FOR RURAL EXCHANGE Line Protectors on Wall at Left.
OLD BRANCH-TERMINAL MULTIPLE BOARD, PARIS, FRANCE
No. 10 SERIES MULTIPLE SWITCHBOARD Monarch Telephone Mfg. Co.
OPERATOR'S EQUIPMENT Clement Automanual System
MAIN ENTRANCE AND PUBLIC OFFICE, SAN FRANCISCO HOME TELEPHONE COMPANY Contract Department on Left. Accounting Department on Right.
MAIN OFFICE BUILDING, BERKELEY, CALIFORNIA Containing Automatic Equipment, Forming Part of Larger System Operating in San Francisco and Vicinity. Bay Cities Home Telephone Company.
GRANT AVENUE OFFICE OF HOME TELEPHONE COMPANY, SAN FRANCISCO, CAL. A Type of Central-Office Buildings in Down-Town Districts of Large Cities.
INTERIOR OF WAREHOUSE FOR TELEPHONE CONSTRUCTION MATERIAL
HOWARD OFFICE OF HOME TELEPHONE COMPANY, SAN FRANCISCO An All-Concrete Building Serving the District South of Market Street.
WEST OFFICE OF HOME TELEPHONE COMPANY, SAN FRANCISCO Serving the General Western Business and Residence Districts.
COMPRESSED AIR WAGON FOR PNEUMATIC DRILLING AND CHIPPING IN MANHOLES
SOUTH OFFICE OF HOME TELEPHONE COMPANY, SAN FRANCISCO
THE OPERATING ROOM OF THE EXCHANGE AT WEBB CITY, MISSOURI
A TYPICAL MEDIUM-SIZED MULTIPLE SWITCHBOARD EQUIPMENT
MAIN OFFICE, KEYSTONE TELEPHONE COMPANY, PHILADELPHIA, PA.
MAIN OFFICE, KANSAS CITY HOME TELEPHONE CO., KANSAS CITY, MO.
VENTILATING PLANT FOR LARGE TELEPHONE OFFICE BUILDING
ONE WING OF OPERATING ROOM, BERLIN, GERMANY Ultimate Capacity 24,000 Subscribers' Lines and 2,100 Trunk Lines. Siemens-Halske Equipment. Note Horizontal Disposal of Multiple
OPERATING ROOM AT TOKYO, JAPAN
ONE WING OF OPERATING ROOM, BERLIN, GERMANY Ultimate Capacity 24,000 Subscribers' Lines and 2,100 Trunk Lines. Siemens-Halske Equipment. Note Horizontal Disposal of Multiple Jack Field.
VIEW OF A LARGE FOREIGN MULTIPLE SWITCHBOARD
OLD SWITCHBOARD OF BELL EXCHANGE SERVING CHINATOWN, SAN FRANCISCO, CALIFORNIA
ONE OF THE FOUR WINGS OF THE OLD KELLOGG DIVIDED MULTIPLE BOARD OF THE CUYAHOGA TELEPHONE COMPANY, CLEVELAND, OHIO Ultimate Capacity, 24,000 Lines. One of the Two Examples in the United States of a Multiple Switchboard Having an Ultimate Capacity over 18,000 Lines. Replaced Recently by a Kellogg Straight Multiple Board Having an Ultimate Capacity of 18,000 Lines and a Present Capacity of 10,000 Lines.
MAIN EXCHANGE, CLEVELAND, OHIO. Largest Four-Party Selective Ringing Switchboard in the World. Kellogg Switchboard and Supply Co.
A SPECIALLY FORMED CABLE FOR KEY SHELF OF MONARCH SWITCHBOARD