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Digital Collections

Advertisements, Ephemera

The Case of the Missing Ring

  • Advertisement for Dow Chemicals

  • 1951

Rights

Public Domain

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Color print advertisement for ion exchange resins manufactured and sold by the Dow Chemical Company for water purification and other uses. The advertisement depicts a mother and son peering into a bathtub. The accompanying text details how Dow ion exchange resins are used to soften water and thus eliminate "the ring around the bathtub" caused by hard water.

Property Value
Creator of work
Format
Genre
Extent
  • 11 in. H x 8.25 in. W
Language
Subject
Rights Public Domain Mark 1.0
Credit line
  • Courtesy of Science History Institute

Institutional location

Department
Collection
Physical container
  • Box 8

View collection guide View in library catalog

Related Items

Cite as

Dow Chemical Company. “The Case of the Missing Ring,” 1951. Advertisements from the Dow Chemical Historical Collection, Box 8. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/n04lxne.

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The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at digital@sciencehistory.org.