• Created Date
  • 1906-1906
  • Description
  • Caption: "End of the big pneumatic tube system in the basement of the Chicago Post Office." From text: "The underground pneumatic tube system is the largest of the kind in the world. There are three double-tube trunk lines, aggregating over eighteen miles of eight-inch cast iron pipe. Of these lines the stockyards branch is the longest, the station being six and one-half miles away from the post-office, requiring thirteen miles of pipe. Relay ... more
    Caption: "End of the big pneumatic tube system in the basement of the Chicago Post Office." From text: "The underground pneumatic tube system is the largest of the kind in the world. There are three double-tube trunk lines, aggregating over eighteen miles of eight-inch cast iron pipe. Of these lines the stockyards branch is the longest, the station being six and one-half miles away from the post-office, requiring thirteen miles of pipe. Relay stations on this line are at Twelfth and Twenty-second streets ... less
  • Rights
  • Images in this collection were digitized through the University of Illinois Library's participation in the Open Content Alliance and may be used freely. Attribution to the University of Illinois is appreciated. High-resolution images can be downloaded from the Internet Archive at www.archive.org. For further information, contact dcc@library.uiuc.edu.