The Janet A. Ginsburg Chicago Tribune Collection

Hours of greatest and least activity in Chicago

Illustration showing the varying degrees of telephone activity in Chicago at different times of the day. Acompanies an article titled "Pulse of the city" about telephones to measure the city's activity.


1897-04-04

22 x 40.5 cm

Tribune Company

grayscale

  • 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 (April 4, 1897), Part 5, p. 37

  • application/pdf
  • image/jpeg