German made, square, hand cut glass lamps by Staff Leuchten, 1960s. The lamps can be used as wall lamps or ceiling lamps. Ceramic lamp sockets. Weight: 3kg (per piece) This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.