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Digital Collections

Postage stamps

First Day Cover commemorating the 75th anniversary of the American Chemical Society

  • 1951

Rights

Public Domain

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Cachet depicts two chemists working in a laboratory.

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Rights Public Domain Mark 1.0
Credit line
  • Courtesy of Science History Institute

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Department
Collection
Physical container
  • Box 5

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Related Items

Cite as

“First Day Cover Commemorating the 75th Anniversary of the American Chemical Society.” United States, 1951. Witco Stamp Collection, Box 5. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/w9505056r.

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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.