http://www.kunsthaus.ch/en/the-collection/conservation/examples-from-the-world-of-art-conservation/technical-analysis/pencil-lines-of-a-grid-on-and-under-the-paint-in-the-area-of-the-female-figure/?redirect_url=title%3dView%22

Kunsthaus Zürich

Ferdinand Hodler

Technical analysis

Pencil lines of a grid on and under the paint layer in the area of the female figure
Pencil lines of a grid on and under the paint layer in the area of the female figure