Annette Kolb (1926) print in high resolution by Ernst Ludwig Kirchner. Original from The National Gallery of Art. Digitally… https://www.rawpixel.com/image/3034556/free-illustration-image-vintage-portrait-annette-kolb-antiqueFree Image from public domain licenseDr. Ludwig Binswanger (1917–1918) print in high resolution by Ernst Ludwig Kirchner. Original from The National… https://www.rawpixel.com/image/3036990/free-illustration-image-vintage-portrait-graphic-art-antiqueFree Image from public domain license