Set of 4 vintage chairs Hiller 1980's

Set of 4 vintage chairs 1980's stamped hiller, stackable, in thermoformed beech veneer and black metal tubing square section. Very nice model with this unhooked from the file. Stable, solid, clean, comfortable, no structural concerns, very beautiful clean lines, nevertheless in their vintage condition, namely that the wood part has the usual traces due to time and use (confer photos - school or conference use...). Note that the 4th chair (confer last photo in particular) has a light and discreet variant to the tubing and seat. These chairs will find their place around a large table as well as in a bistro atmosphere. Standard seat height of 46cm, backrest height of 78cm. Beech seat of 40, 5x40, 5cm.