Poster for the Global Freud conference, held in Dana Commons at Clark University's on November 21, 2009. In honor of the centennial of Freud's visit to Clark University, the Leir Chair hosted a seminar on Freud reception in Germany, Mexico, the francophone Caribbean, China and Japan. Photos from this conference can be found here.
These are currently the best available versions of these posters.
Some the artists who helped design these posters include Nina Borland, Jasper Boyd, Isabel Miranda, and Sampson Wilcox. This is the current extent of our knowledge regarding the Henry J. Leir poster designers.
Clark University, "Global Freud" (2009). Event Posters. 13.