| Paul Fréderic Alphonse Julien (1901-2001) "Blacksmith in Potopota near Nola", Central African Republic 1936 Photograph Nederlands Fotomuseum Paul Julien Collection, PJU-1374 LL/92065 (Andrea Stultiens, 1 July 2019) The entrance gate to the Mahdi's tomb/guba in 1933, before it was rebuilt mid 1940s.
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