A WWII-era view of the corner of 20th and 3rd Streets, near the Bethlehem shipyards during the peak of wartime production. A close look at the working class as it is coming and going from the busiest industrial site in San Francisco, grabbing streetcars and crossing the street, a slice of life. This is a short excerpt from the Prelinger Archives' "Lost Landscapes #1" which was originally launched as part of the Shaping San Francisco Talks series in 2006.