This articulating and complex wall lamp has an amazing look. The dome over square Holophane shade is original 1930s and one of the more interesting shades the company created. The Brass and aluminum arm is new and something we had created. It a replica of a very rare Dental wall bracket from the turn of the century. It moves up and down on a ratcheted gear with a spring pin as well as adjusting in length. The also has a number of knobs and sliding parts. The metal parts have a bright brushed finish. The lamp is wired with a long old style twisted fabric covered cord and plug. It take an E26 40W to 60W bulb or brighter LED.