Original 8 x 10 silver gelatin photograph showing Big Joe Williams warming up backstage at the University of Chicago, taken by Raeburn Flerlage. Reverse bears a "Raeburn Flerlage / ASMP" credit stamp and pencil caption. In fine condition. Raeburn Flerlage (1915-2002) was a photographer known for capturing the blues and folk scenes in 1960s Chicago, documenting the likes of Howlin’ Wolf, Muddy Waters, John Lee Hooker, Odetta, John Coltrane, and Bob Dylan.