Vintage opaline porcelain wall lamp art deco style

Applies from 40 years. Wall mounting system in white porcelain. Lampshade in opaline white color. Bayonet socket. Very nice overall condition. Very rare and very discreet traces of common use in places on opaline (see photos and zoom). Works with bayonet bulb not included. Max diameter of the glass 12 cm. Total distance to the wall when the wall lamp is mounted 13 cm. Total height of the wall lamp 20 cm. Total width 12 cm.