Mid-century model ph5 pendant lamp by poul henningsen for louis poulsen, 1960s

This is a poul henningsen's 1958 design based on the principle of a reflective three-shade system, which directs the majority of the light downwards. The ph5 lamp was launched in 1958: the 5 in its name refers to its 50 cm diameter. The shades are in white lacquered aluminum. The lamp is in perfect condition. The wiring has been replaced new. Lamp has been tested and is in working order.