Paris: L'Illustration, 1931. Unpaginated, perhaps because "hors serie" and not to be confused with a regular issue. Profuse illustrations with plenty of color, also sepia and b&w. Scattered essays are boilerplate, of course. Format is that of the magazine proper: 15x11 inches, cover has color plate affixed. Complete text but in wretched shape, spine dreadfully chipped, front wrap detached or nearly so, staples exposed. Could be worse; the textblock is sound in itself, complete as said, and only mildly edgeworn. Looks like a full-bore world's fair with what appears to be solid architectural constructs and lots of African people and African wildlife to keep visitors in the mood.
Held in Paris; find a couple small b&w aerial photographs of the site, and a full doublespread artist's aerial rendering in color.