Steph Posted May 31, 2014 Report Share Posted May 31, 2014 February 1942 Fiberglass manufacture, Owens-Corning, Toledo, Ohio. Millions of carefully inspected glass marbles, ready for remelting and forming into glass filaments. A single marble can be drawn into a continuous filament so fine that it would reach from New York to Philadelphia. More than one hundred filaments must be drawn together to make the finest workable strand (link) More Owens-Corning pictures: http://www.loc.gov/pictures/search/?q=marbles%20owens%20corning Link to comment Share on other sites More sharing options...
Ric Posted May 31, 2014 Report Share Posted May 31, 2014 Marbles as feedstock . . . Link to comment Share on other sites More sharing options...
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