100 Years of the Railroad - The Centennial Pageant of the Baltimore & Ohio Railroad will be held at Baltimore, Sep 24 to Oct 8, 1927

The earliest posters in the collection feature Leonora Jackson, one of the first female violinists to gain international fame, circa 1900-1915. The most recent poster is a 2020 Black Lives Matter poster. In between is everything from a 1968 Nixon/Agnew campaign poster, to Baltimore City Fair posters from the 1970s, to a poster from the U.S. Pro Cycle Championship held in Baltimore in 1982.

The bulk of the posters in the collection, over 1,000, are World War I and World War II era propaganda posters. Most were produced by the U.S. Government; the collection also consists of privately printed posters, both from the United States and abroad.