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The material on this Web site represents a small sample of ephemera that documents the three largest and most influential left-wing organizations in the United States in the twentieth century:
- Socialist Party of America (SPUSA)
- Communist Party of the USA (CPUSA)
- Students for a Democratic Society (SDS)
Digitized items include flyers, leaflets, pamphlets, posters, postcards, illustrations, photographs, pins, ribbons, and miscellaneous objects.
It comprises a much larger collection of material accumulated by Richard J. Oestreicher, Associate Professor of History, University of Pittsburgh and recently donated to the University's Archives Service Center. The larger collection includes a much broader range of organizations and political tendencies.
This collection is hosted by the University of Pittsburgh's Digital Research Library.