Book excerpt: The Hahnloser Collection was created in the early twentieth century in close friendly exchange between the collectors Arthur and Hedy Hahnloser-Bühler and their famous artist friends. The publication presents some 120 works providing an overview of this unique international collection of Swiss and French modernism as well as illustrating its exemplary cultural-political character.00The catalogue sheds light on the collectors? close contact with their artist friends including Pierre Bonnard, Ferdinand Hodler, Henri Matisse and Félix Vallotton. It provides an insight into unknown aspects of the artists? lives, their creative work and the motivation and passions of the collectors themselves. Today the collection is largely in the possession of the collectors? heirs or has been donated to the art museums of Bern and Winterthur.00Exhibition: Albertina Museum, Wien, Austria (22.02. - 23.05.2020).