In the early 1960s, Arman Fernandez with Jean Tinguely and others proposed "Nouveau Réalism" jointly, which used more ready-made objects, collaged and reorganized to create. For example, Arman's famous "Accumulation" series is to cut the object, then accumulate and reorganize it, so that the object eliminates its original definition and has the possibility of being re-appreciated. In this auction, "Panthère", made in 1990, it can be seen that Arman has staggered and juxtaposed multiple sets of front and rear feet to make it more speedy and explosive when running.