Explore Chicago Collections
https://explore.chicagocollections.org/records/?f3-topics=Work%3A%3AAdvertising&f2-institutions=University%20of%20Chicago&f1-cities=St.%20Charles&browse-topics=yes&sort=title&f5-cities=St.%20Charles&f4-institutions=University%20of%20Chicago&f6-topics=Work::Advertising&f7-topics=Natural%20%26%20Built%20Environments::Railways