Pacific Asbestos Corporation, The Story of Asbestos Fibre Production (c. 1970)

An undated color sales booklet of Pacific Asbestos Corporation of Copperopolis, California, "The Story of Asbestos Fibre Production by Pacific Asbestos Corporation." It shows the company's open-pit chrysotile mining operation, its fibre recovery system and mill, quality control, research and development, and packaging and shipping, with a table of tests performed on its fiber grades (Groups 4 to 7) by the Quebec Standard test and other methods. It explains the "Mother Lode" brand name, after the gold-rush country where the deposit was found, and lists uses "in industry" (asbestos-cement pipe, plastics, filtration, drilling fluids, fireproofing) and "in the automobile" (brake linings, clutch facings, gaskets, undercoating) and the home.

What it shows

The booklet is a straightforward sales piece for short California chrysotile fiber; it says nothing about health or dust. It shows the range of everyday products, from roof shingles and floor tile to brake linings and swimming pools, into which this fiber was sold.