The Janet A. Ginsburg Chicago Tribune Collection

The graphic laboratory of popular science : Mussolini's pitch graph shows pitch level close to 190 vibrations

Benito Mussolini's photograph is seen next to a pitch graph of his radio speech given on September 20, 1938.


6.1 x 15.3 cm

Tribune Company

black and white

  • English

  • still image
  • text

  • These materials are either in the public domain, according to U.S. copyright law, or permission has been obtained from rights owners. The digital version and supplementary materials are available for all educational uses worldwide.

  • The Janet A. Ginsburg Chicago Tribune Image Collection

  • Chicago Sunday Tribune (May 28, 1939), p. 8

  • application/pdf
  • image/jpeg


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