Desk lamp on ball joints - industrial design 1950

Very beautiful table lamp on ball joints, industrial design of the 1950s. The lamp is entirely metallic, it is original bottle green color. It has a circular foot including a push-button type switch. The arm is articulated thanks to 2 ball joints, one at the base, the other at the end. The reflector is equipped with a socket with a baillonnette. The lamp is in perfect working order, the electrical equipment is original. It has marks of time (some scratches, paint jumps...).