Hanging lamp in double layer glass

Very special and unique hanging lamp, we have only found it in metal made by hans agne jakobsson, but this one is in several layers of glass. It has the shape of a hat and there is actually a black fabric band that you can take on and off as you like. It's made of many layers of glass, light grey on the outside and white on the inside. Very unique. Estimated 1970s. Measures 16 cm in height and 25 cm in diameter, with no chips, cracks or other defects (see the red ring in the last picture, it's an air bubble between the layers of glass and not a chip). Includes one bulb (has a standard e26/e27 socket) Comes securely packaged and with insurance. Shipping eu 15 €. Shipping uk 30 €. Shipping rest of the world on request.