Vintage Dutch blue 3-seater sofa

Vintage Dutch blue 3-seater sofa. It is made of high quality birch wood, at the end of the seat there is a hidden panel that can be extended and turns the piece into a bed in a unique way. One of the back pillows can be placed on the panel to extend the length of the sofa. The back pillows are loose on the bed, so for back support it needs to be placed against a wall. From the 1970s.