Older square hanging lamp with olive colored outer glass with inner shade of crystal glass

Beautiful older square hanging lamp with olive colored outer glass with inner shade of crystal glass. It is swedish and from the 60-70s, the glass is made at orrefors glassworks, but we do not know who designed the lamp itself. It could be carl fagerlund, but we don't know for sure. It is a heavy, good quality lamp measuring approximately 28 cm in height (including the metal top) and 18 X 18 cm in length/width and weighs 2450 grams. Normal signs of wear and tear, no defects or missing parts. A bulb is included (uses a standard e26 or e27 bulb). Packed securely and shipped with insurance.