Print advertisement for Dowflake depicts a photographic reproduction of a car driving down a dirt road with trees and a body of water in the distance. Patented on February 17, 1925, Dowflake was marketed for use to control dust on unpaved roads and parking lots, as well as a roadway deicer. This advertisement appeared on page 69 of The Literary Digest for April 16, 1927.
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Dow Chemical Company. “Pleasant Driving on Roads Maintained with Dowflake,” April 16, 1927. Advertisements from the Dow Chemical Historical Collection, Box 7. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/bk128b719.
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