Johns-Manville Products Corporation, Chrysotile (Arizona) Mines Fiber Production and Reopening Costs (1943)

Four pages of Johns-Manville Products Corporation records for its Chrysotile asbestos mines at Chrysotile, Arizona: a summary of fiber production and shipments by grade for 1943, a table of fiber produced each year from 1914 to 1930 (6,165.771 tons in all), and two cost sheets for the "re-opening program" of the mines and mill to May 1, 1942. In 1943 the mines produced about 1,141 tons of fiber worth $170,296.21.

What it shows

The records show that J-M reopened its Arizona chrysotile operation during the Second World War, moving mill equipment from its Manville, New Jersey works and building a new mill with crushers, a fiberizer, vibrating screens and aspirating equipment. The cost sheets include a "Dust Control" line budgeted at $1,500, of which $532.19 had been spent by April 30, 1942, and a "Safety Guards" line of $1,000 with $142.95 spent. The mine was sold in 1951 (see the board minutes approving the sale).