Key System and March of Progress

Unfinished History

Key-system-train-on-bay-bridge-from-opening-newspaper.jpg

A Key System train on the Bay Bridge, depicted in the opening celebratory newspaper.

Keysystemmap.gif

Key System map, early 20th century


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The March of Progress: Tour of the modern interurban trolley system of San Francisco's East Bay and over the San Francisco-Oakland Bay Bridge. Predicts the bright postwar future of streetcar transit, with visionary images of advanced-design railcars. The Key System transbay service was abandoned in 1961.

Video: Prelinger Archive

PTT-ad-bay-bridge.jpg

An advertisement from the Pacific Telephone & Telegraph Company welcoming the new, modern Bay Bridge.


Tours-transit.gif Continue Transit History Tour

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