Aramis Antiques has dated this piece to the 1870s.
Each corner is adorned with a copper band, topped by a brass half sphere and a very delicate lattice band. The sconces repeat the theme with a larger geometric copper design over the stippled background. The candlesticks are quite heavy and sturdy for their height, suggested the stem is solid brass. In excellent condition, unusual and a disply of skilled craftsmanship.
Aramis Antiques has dated this piece to the 1870s.
You can view the stock and full dealer information on the Aramis Antiques Profile Page