Any object has an origin, that's why in my capacity as first french specialist, I try to bring the maximum of knowledge, the proof on the identification of this past. My work consists in discovering the documents relating to this period. The first thing, when someone wants to invest hisself in a collection, is his choice. How much time I saw amateurs showing me their lucky finds and having confused simple decorative statuette for a mascot / radiator cap. Error quite as serious in my eyes of impassioned as to acquire copies, but there it is another debate.