Office chair 1970 Overman Svante Schoblom Sweden

1970s Overman Svante Schoblom office chair in Sweden. Black plastic shell clipped onto a light gray lacquered 5-point star base. There are scratches on the seat. On 5 casters. The seat swivels. A rare piece. A sturdy, designer chair. Much copied but never equaled! Seat height: 45 cm (adjustable).