Reports
A 1908 technical report issued by the Scientific Section of the Paint Manufacturers' Association of the United States, published in Philadelphia for paint makers and industrial painters studying paint and corrosion. The four photographs show the same corrugated metal wall panel, with rows of riveted sheets and a few small rectangular test patches, photographed under slightly different light and angles. A designer could take from them the rhythm of repeated riveted panels, the tonal range of weathered grey metal, and the look of a surface prepared for testing.
