Mother-of-pearl and brass wall lamp

Small mother-of-pearl wall lamp set with brass. Creation of the 80s. Attaches very easilymnt with the help of the 2 hooks on the stem. A repair was necessary to hold the fixing rod because the original weld between brass and iron did not hold with the tmeps. Now it is a full test but suddenly on one of the sides there is a size, not remained but I wanted to specify it and suddenly the price takes into account. Socket has screw small base. Sending by post or worldwide relay of your choice.