Vertical slat blind with headrail and cord (Lee SE3)

Second-hand, with headrail/square cassette and all slats bar one. Width of headrail is 178 cm, drop of slats from below headrail is 114 cm. Height of headrail is 3 cm, its depth or projection is 4 cm. Fitted a new type of blind to our study window so this vertical blind is spare. Slats (polyester) are ivory colour.