Fighting rust with sublimed blue lead : an assembly of facts concerning the properties and uses of sublimed blue lead
A 1923 trade booklet from the Eagle-Picher Company of Chicago promotes sublimed blue lead, a rust-resisting paint pigment, to engineers and industrial buyers through photographs of steel structures. Its pictures show riveted steel trusses, a gasometer, and a city skyline, and a designer might take from them the lattice geometry of steel framing and the dense grid of industrial structures.
