The photo, provided by Mardy Rawls, his wife, is from the book Justice, Political Liberalism, and Utilitarianism: Themes from Harsanyi and Rawls, edited by Marc Fleurbaey, Maurice Salles, and John Weymark (Cambridge University Press, 2008, ix).
P.S. Can anyone point me to a video or audio recording of Rawls speaking? I realise I’ve never seen/heard him in action.
UPDATE (same day): I just found another picture of Rawls without glasses (c. 1969), courtesy of his wife and his son, this time on the front cover of Philippe Van Parijs, Just Democracy: The Rawls-Machiavelli Programme (ECPR Press, 2011).