Drawing retorts by hand in the South Metropolitan Gas Company, London, England in the late 19th century. The retorts were where coal was heated to generate the gas. The crude gas was siphoned off and passed on to the condenser and the waste product left in the retort was coke.

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Drawing retorts by hand in the South Metropolitan Gas Company, London, England in the late 19th century. The retorts were where coal was heated to generate the gas. The crude gas was siphoned off and passed on to the condenser and the waste product left in the retort was coke. From Living London, published

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Photo credit: © Classic Image / Alamy / Afripics
License: Licensed
Model Released: No

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