This is a bronze style lamp . not sure if the metal is made to look like bronze .ln good used condition with age wear .not sure if the date could be from the 1960s to the 1990s .the lamp may need rewiring..the length of the top stem are adjustable .I have another pair os  lamps that came with this lamp the lams are in the same style. Collection or because of its length royal mail postage costs will be £50  .thanks for looking