Print advertisement for Dowflake features two illustrations of country dirt roads with a description of the effectiveness of Dowflake. The bottom illustration depicts a crossroad with two automobiles traversing past the intersection. 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 59 of The Literary Digest for May 28, 1927.
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Dow Chemical Company. “Dustless Roads Are Better Roads,” May 28, 1927. Advertisements from the Dow Chemical Historical Collection, Box 7. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/t722h957c.
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