Super-Rare Philadelphia Sesquicentennial Exposition PosterOriginal color lithograph poster made for the Philadelphia Sesquicentennial Exposition, celebrating 150 years of American independence. The artwork features an allegorical female figure symbolizing Liberty or Columbia, standing above a detailed view of Philadelphia that includes the newly completed Delaware River (Benjamin Franklin) Bridge and Independence Hall. It was illustrated by Dan Smith, 18651934) was an American painter and illustrator known