Principles and practices of up-keep painting
This 1923 trade manual from the E.I. du Pont de Nemours company, issued in Chicago, Philadelphia and Boston, instructs industrial painters on maintaining painted surfaces over time. The four photographs show weathered wood boards with peeling paint and grain, and a plain painted panel mounted between metal fixtures, useful for a designer studying aged paint surfaces, wood grain texture, and the look of test panels for surface finishes.
