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You searched for: Creator Chicago Regional Planning Association Remove constraint Creator: Chicago Regional Planning Association Creator Indiana. State Highway Commission (1919-1953) Remove constraint Creator: Indiana. State Highway Commission (1919-1953) Holding Location B-WELLS Remove constraint Holding Location: B-WELLS

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  • Region of Chicago--Indiana section : truck traffic in 24 hours on a typical week-day during August, 1931
  • Region of Chicago--Indiana section : highway traffic in 24 hours on a typical week-day during August, 1931