Folder: S.F. Freeways-Central (101).
Written on back: "This 148 foot, 30 ton welded steel plate girder will be put in place at 13th and South Van Ness as part of the San Francisco Freeway. Fabricated by Independent Iron Works in Oakland, more than 3,000 tons of Kaiser Steel plate is being fabricated into welded plate girders for the Freeway project".