Old bronze chandelier 4 lights

Old bronze chandelier with 4 lights. There are 3 colored tulips plus a central polished glass tulip (see photos). Bayonet socket type, standard or led bulb type. It is electrified with recent wire and in working order. It is possible to clean it to get the golden bronze. I have not done it because there are customers who like it in its own juice. Dimensions 60 cm circumference, 63 cm high.