Explore Chicago Collections
https://explore.chicagocollections.org/records/?sort=title&f2-topics=Work%3A%3AAdvertising&f1-topics=Daily+Life+%26+Identity%3A%3ACommuting+%26+Transportation&f3-topics=Natural%20%26%20Built%20Environments::Railways&f4-types=Archival%20Collections&f5-topics=Natural%20%26%20Built%20Environments::Railways&f6-types=Archival%20Collections