Cross-section diagrams of the Pacific Cable (Vancouver–Fanning Island Section A), showing different types of cables: Heavy Shore End, Heavy Intermediate, Light Intermediate, Deep Sea, and Land Cable. At the bottom is a full-size illustration of the Deep Sea Cable, detailing its layers of copper conductor, gutta-percha insulation, steel wire, and protective serving.
This striking map celebrated the global communications network of the early 20th century. With London at its hub, it shows submarine cables and wireless links encircling the world, binding together the Commonwealth and beyond. Illustrated with cable ships, telegraph rooms, and wireless stations, it symbolized both technical achievement and Britain’s pride in controlling the “All-Red Line” — the world’s first truly global communications web.
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