Mid century Limburg bubble Glass and Chrome Pendant, Germany 1970sMid century Limburg bubble Glass and Chrome Pendant, Germany 1970s Space Age pendant by Limburg, Germany, 1970s. The beautifully shaped blown clear bubble glass body contains countless small air bubbles for a spectacular light effect. The E27 socket is recessed far into the chrome tube so that the light source itself isn't visible thereby providing an indirect down light which is captured and reflected by the tiny air bubbles trapped within the glass.