The materials of paint manufacture.
A 1910 trade manual on paint materials, written by G. B. Heckel and issued by the Educational Bureau of the Paint Manufacturers' Association of the United States for the paint industry and its workers. The photographs show factory interiors, a worker amid storage and raw material, and a man tending open pits of pigment, with grainy halftone tones and plain documentary framing a designer could borrow for industrial or heritage themes.
