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1942


Steph

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February 1942

8b01964v_zpsd9b14150.jpg

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

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