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Interior of a Glass furnace which is being repaired. The floor is covered with a foot of cooled glass. When the furnace is working it contains four feet of Molten glass. While glass is flowing out of furnace is kept a a temperature of about 2600 Fh.[degrees Fahrenheit]. At the farthest end we see the small door from which the glass flows out. Ford Motor Plant, Detroit, Mich.
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