[CABLE TURNING SECTIONS, BETWEEN A AND B BOARDS
Cortlandt Office, New York Telephone Co.]

[CABLE RUN FROM INTERMEDIATE FRAME TO MULTIPLE
Cortlandt Office, New York Telephone Co.]

[TERMINAL ROOM IN MEDIUM-SIZED MANUAL OFFICE
Relay Rack at Right. This Employs the Kellogg Parallel Arrangement of Frames.]

[SWITCH ROOM OF CITIZENS' TELEPHONE COMPANY, GRAND RAPIDS, MICH.
One of the Earliest Large Automatic Offices.]

[A MULTIPLE MANUAL SWITCHING BOARD FOR TOLL CONNECTIONS IN AN AUTOMATIC SYSTEM
Multiple Jacks are Provided for Each Line through Which Toll Connections are Handled Directly.]

[AUTOMATIC EQUIPMENT, MAIN OFFICE, BERKELEY, CALIFORNIA
A Feature of Interest Here is That the Cement Floor is Treated with a Filler and Painted, with No Other Covering.]

[WESTERN ELECTRIC COMPANY TYPICAL CHARGING OUTFIT AT DAWSON, GEORGIA]

[DEAN HARMONIC CONVERTER
Dry Cell Type for Magneto Exchange.
The Dean Electric Co.]

[POWER SWITCHBOARD FOR MEDIUM-SIZED OFFICE
Mercury Arc Rectifier Panel and Transformer at Right.]

[GAS ENGINE AND POWER BOARD
Citizens' Telephone Co., Racine, Wis.
The Dean Electric Co.]