Telecommunications systems map

Prev
Next
Image Zoom
  • Details
  • Description
Date
1951
Credit Line
Courtesy of BT Heritage. Reference TCB 319/PRD 628
Copyright Owner
© Cable & Wireless, Ltd.
Object ID
500004765

By the 1940s, a mix of telephone and telegraph services connected nearly every inhabited place on earth. Most data traveled over wires, and some over radio links.