Bunch of articles by or about Rimbaud, all in French.
Report by Rimbaud on the Ogadine, Harar 1883
La Revue Blanche, Volume 13
La Revue Blanche, Volume 14
Dernieres Lettres d’Arthur Rimbaud, with drawings by Rimbaud
Revue d’Ardenne et d’Argonne, Volumes 7-8
Tons of articles on Rimbaud, including one that mentions a picture of him in Oriental costume owned by his sister, I read somewhere that she destroyed this later.