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Contact sheet of James Collyer Keck and John B. Heywood testing engine in laboratory, circa 1972

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Description

Contact sheet of James Collyer Keck and John B. Heywood testing an engine in a laboratory. Original caption: "Profs. Keck & Heywood and others test emissions with a laboratory model engine for a computer model aimed at helping auto manufacturers meet tough 1975 pollution standards." Used in: Tech Talk, Vol 17 No 23, 12/13/1972.

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