It was released in several versions in different colors and was sometimes called the Z-lamp, but never by Louis Kalff or Philips themselves.
This later version, which came out at the end of the 1960s, was named: 'Romeo 69'.
This copy is in good vintage condition.
Louis Kalff was a pioneering industrial designer in the Netherlands in the first half of the 20th century. With a solid background including studies in sculpture, ceramics, furniture design and architecture, he started working for the Philips company in 1924, consumer electronics marketing department.
In 1929 he started a department for designing lighting products. Louis Kalff was responsible for the lighting sections of the World's Fairs in Barcelona, Antwerp and Paris.