Aluminor calendar office lamp 1950

Very rare aluminor desk lamp with 1950s calendar. Entirely made of metal with period red grain coating, orientable stem and golden brass elements. The base is equipped with a push switch and a calendar. The lamp is in an exceptional state of origin (must have served very little). In perfect working condition, whether it's the calendar or the lighting. Very rare to find a lamp of the 50s in an almost impeccable condition. Height: 45 cm max, reflector diameter; 19 cm base: 16 cm X 13 cm. Bayonet socket.