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Conversion. Beverage containers to aviation oxygen cylinders. After shatterproof oxygen cylinders for high altitude flying…
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Conversion. Beverage containers to aviation oxygen cylinders. After shatterproof oxygen cylinders for high altitude flying have passed all tests in the metal division of a large Eastern rubber factory, hot air is blown through the cylinders to remove all trace of moisture (left). The cylinders are then sealed (right) and piled into stacks for painting (center). Firestone, Akron, Ohio. Sourced from the Library of Congress.

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Conversion. Beverage containers to aviation oxygen cylinders. After shatterproof oxygen cylinders for high altitude flying have passed all tests in the metal division of a large Eastern rubber factory, hot air is blown through the cylinders to remove all trace of moisture (left). The cylinders are then sealed (right) and piled into stacks for painting (center). Firestone, Akron, Ohio. Sourced from the Library of Congress.

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