Special report of the Merchants' Association Bureau of Inspection : showing difficulties encountered with specifications in work on public buildings
A 1910 technical report issued by the Merchants' Association of San Francisco's Bureau of Inspection, documenting faulty concrete and carpentry on municipal building contracts for city officials and contractors. Halftone photographs, captioned as lettered exhibits with dates, show formwork, timber shoring, honeycombed concrete walls and cracked stairwells: useful for construction-site textures, scaffolding geometry and grainy evidentiary framing.
