French craft lamp vintage black marble 1930 42 cm

Old chrome metal and marble desk lamp signed "french craft" at the base of the lower arm circa 1930 in good condition. This superb art deco piece is in excellent condition, the metal parts are shiny, the bottom arm is lacquered in black. The black marble base is clean and thick. It works with unsupplied bayonet bulb. It measures 42cm deployed (32cm folded), it is 25cm deep, each arm measures 18cm, the corolla is 18cm wide. The base measures 16x12cm and 3cm thick.