Industrial chair, stool, studio chair, Bienaise, 1950s

This chair was made by the brothers Franck and
Harry Nelson, two Americans who lived in Paris.
It is a sturdy chair with a adjustable backrest
(in height and poition)
The seat is adjustable in height by turning it.

Height: 78 - 110 cm.
Seat height: 46 - 78 cm.
Depth: 42 cm.
Width: 38 cm.
Origin: France, 1950s.
Material: steel, plywood.