They are called giano, remembering the roman god with two faces. The sconces are attached to the backplate with two hinges that allows to be placed at different angles. The sconce's structure is made from natural solid brass, while the shades are in lacquered aluminum. The smaller cone-shaped shade houses a candelabra (e12 or e14) bulb, while the larger lower dome-shaped shade accommodates either a regular (e26 or e27) socket for task light with higher lumens output. The shade's adjustable pivot head allows the output from the large shade to be directed to the desired area, while the upper cone-shaped shade creates ambient light. The backplate is made to cover a us standard jbox and allows direct attachment. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).