Official building laws, City and County of San Francisco, 1921
A compilation of San Francisco's municipal building, plumbing, and electrical ordinances, issued in 1921 by the trade paper Daily Pacific Builder for contractors, architects, and inspectors in the city. The plates are trade-catalogue cuts and diagrams set among the text: welded reinforcing mesh, a riveted water heater on cast legs, hinged sheet-metal fire doors, and axonometric hollow tile laid up as a 12-inch wall, all usable as coarse-screened line stock for construction and hardware motifs.
