-A HIGHLY IMPORTANT COLLECTION OF AFRICAN ART CHIEFLY FROM THE BELGIAN CONGO. Londres, Sotheby's, 30 mai 1960. In-8 agrafé. Rare.
-PRIMITIVE ART (Duplicates of the collections of Governor N.A. Rockfeller and the Museum of Primitive Art. New-York, Parke-Berner Galleries Inc, 4 may 1967. In-8 br.