Obliqua Mario Botta armchair

Here is a beautiful example of the very famous armchair "obliqua" designed by mario botta for alias in 1983. It represents, as its name suggests, an inclined plane in space, ready to welcome its owner by a very pleasant system where the seating area tilts when pressure is applied. The black leather is maintained, in good condition, with some slight marks but no damage to note. The structure is in very good condition and the seating system works perfectly well. If I am not mistaken, there is no specific signature/marking on the chair. A beauty! Width 88. Depth 88. Height 70 cm.