San Francisco : Architect and Engineer, Inc · leaf 23
WORLD HEADQUARTERS . . . … POURING CONCRETE Excavation of ground for basement has beencompleted and forms set in place to start pour-ing of concrete . . . steel reinforcing bars havebeen laid in criss cross pattern to strengthenfoundation. As concrete is poured into forms from concretetruck on ground level workmen agitate…
Architecture · Building
Internet Archive · Public Domain Mark 1.0. Free to use for anything.