This lamp consists of a metal arm that runs from the base to the shade. The heavy base can rotate 360 degrees. The shade is also rotatable and has a glass diffuser with 2 lamps below it. Original mark under the foot of the lamp. Fase Madrid was founded by Pedro Martin in 1964 and some of his most iconic lamps, such as the Boomerang, were produced during the first years of its founding. Their innovative designs are still sought after around the world by lovers of extraordinary designer lighting. Many Phase lamps have been shown in films, TV series and magazines. Pedro Martín initially sold the lamps designed and manufactured by him at the Madrid markets. They were a huge success, and in the 1970s his factory exported the lamps worldwide. Designer: Pedro Martín Manufacturer: Fase Madrid Origin: Spain Period: 1960s Measurements: H 40 cm Ø lamp shade 30 cm Ø base 20 cm Condition: very good Colours: base black, arm light grey, lamp shade anthracite/dark grey Materials: metal/glass