Suspension rises and falls 70's chrome metal and opaline ball

Very pretty chandelier rises and falls in chrome metal and opaline globe from the 1970s. Some slight traces of pigmentation on the chrome due to age but can only be seen up close. Diameter of the opaline ball open at the bottom 20 cm. Height of the chandelier when folded 56 cm. Height deployed 150 cm or 1m50. Electricity redone, screw socket.