Among the earliest photos on display as part of “African Spirits,” this triptych comes from the Roka photo studio in Mali and dates to the 1960s or ’70s.

Among the earliest photos on display as part of "African Spirits," this triptych comes from the Roka photo studio in Mali and dates to the 1960s or '70s.

Among the earliest photos on display as part of “African Spirits,” this triptych comes from the Roka photo studio in Mali and dates to the 1960s or ’70s.

Among the earliest photos on display as part of “African Spirits,” this triptych comes from the Roka photo studio in Mali and dates to the 1960s or ’70s.