I don’t know, but could not choose between these two photo’s I took from this Polyether Chair by Gunnar Aagaard Andersen from 1964 in the Danish Design Museum in Copenhagen
Gunnar Aagaard Andersen (14 July 1919, Ordrup — 29 June 1982, Munkerup) was a Danish sculptor, painter, designer and architect whose work belongs to the Concrete art movement according to Wikipedia