Check out historic photos that capture the evolution of the SF Muni bus.
This on-line article from the San Francisco Chronicle presents 43 photos and a video of transit vehicles going back to 1912. “The earliest one dates from 1918, showing the first gasoline bus introduced by The San Francisco Municipal Transportation Agency. It crossed Golden Gate Park.”
The post features a video of streets in San Francisco in 1912.
~Thanks to Asha W Agrawal for this post