Wabash’s Banner Blue By Angela Cotey | January 24, 2022 | Last updated on June 22, 2022 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Hudson type 706 leads the Wabash’s Chicago–St. Louis Banner Blue through Chicago Ridge, Ill., in August 1948. The train retained its heavyweight equipment – including open-platform observation car – until 1960. Bob Borcherding photo