My selection criteria have always been the following: firstly, authenticity : I have never selected, as far as possible and according to my knowledge, only objects having been created with traditional tools and used for ritual purposes or others in their cultural context. Secondly, antiquity : without speculating obsessively on age, which in the primitive arts has little meaning except for archaeological pieces, the objects have always been selected preferably for the traces left by time and by use (patinas, sacrificial charges, ritual projections, wear etc.) attraction that only a venerable age with all its experience can bring. All the better obviously, if by expertise we can estimate that an object falls within or is close to the period that we qualify as classic (late 19th/early 20th century). Thirdly, aesthetics and/or expressiveness : I have always tried to retain only objects possessing the plastic and expressive qualities capable of arousing this emotional reaction which establishes their power.