Alleegasse is a collection of armchair and sofa designed by Josef Hoffmann, with structure made of black beech, then padded and upholstered in fabric, velvet or leather. This upholstered sofa was designed in 1912 for Dr. Hugo Koller's music room as part of the furnishings at his Vienna apartment in Alleegasse (now Argentinierstrasse), and now proposed again with its original design by the Wittmann brand. Alleegasse is a timeless piece that perfectly adapt to modern environments even nowadays.