Hannes Portmann Hannes Portmann (Sempach 1927 – 2007 Forch) View of Aigueze Color lithograph Signed lower right: Hannes Portmann Inscribed lower left: Epr. d’Art 45 x 32.5 on 45 x 56.5 cm (BFK Rives) Anfrage / Preguntar / Request