Wall lamp - Opaline glass

Art Deco style wall lamp consisting of marbled opaline glass on a brass fixture.
The piece is in good condition, the glass is intact, the brass shows signs of age.
The mounting hole has a small crack, however the metal is so strong that it has no impact on hanging, still I have applied some two-component glue to the back, see photos.
The length is 24 cm., the length of just the glass is 20 cm., the diameter is 12 cm.
The depth from the wall is 28 cm.
The lamp can change position, see the last 4 photos, in the longest position the lamp is 46 cm.