Old BRONZE GOOSENECK wall lamp with wavy yellow green OPALINE lampshade

Old swan neck wall lamp in gilded bronze, with wavy yellow / green opaline lampshade + claw + bayonet socket (bulb not supplied). Swan neck dimensions: base diameter: 6.5 cm length of arm alone: 24 cm dimensions of lampshade alone: height: 9.5 cm maximum diameter: 25.8 cm traces of use, in its juice, micro chips around the claw hole, small lacks of gold, manufacturing defect (grains in the material) on the lampshade, arm not straight, cleaning to be perfected, see photos.