A copy of this 1894 map hangs on the wall of the Cañada College Library, but this image is from the Library of Congress in Washington, D.C.
The Sanborn Map Company platted about 12,000 cities and towns in the United States in the 19th and 20th centuries. Insurance companies used the maps to assess liability and value in case of fire.
See the San Francisco Public Library's extensive collection of Sanborn maps for San Francisco County here. Find even more maps of cities and towns throughout the united States in the Library of Congress' Sanborn Fire Insurance Maps Collection here, including Redwood City.