Midcentury extra large green glass tube pendant, Staff Leuchten 1960s-1970s

Wonderfull extra large ( 80 cm including top finial ) hanging pendant currently attributed to Staff Leuchten who was famous for their glasswork. This lamp is fitted with two E27 lightbulbs where one is positioned shining into the tube and one is shining towards the lowest sphere. This lamp came to us without the finial which we had custom made by our electrician. Originally we suspect there may have been an screw on top and strangely enough there may also have been one one the bottom sphere which also has a screw on finish, all other parts are completely original. Our electrician has rewired the piece and placed the wiring inside the tube where it originally was. The bottom sphere has a diameter of approximately 23 cm. The ceiling cap is also original to this rare find.