Wall sconce - Brass bronze - Gilded bronze wall sconce

Antique brass wall sconce with inserts in gilded bronze and a round blown glass ball.
The wall sconces, including the glass ball, measure 30 cm by 18 cm, and the wall base is 30 by 15 cm.
A square fastener can be seen on the front.
On the rear part, a very rusty pin is observed.
The wall light is electrified, but the wiring should be reviewed before installation.