Robert Zünd – Kunsthaus Zürich. Title: Eichenwald. Date: 1882. Materials: oil on canvas. Dimensions: 119 x 159 cm. Sourcehttps://commons.wikimedia.org/wiki/File:Z%C3%BCnd_Eichenwald_1882.jpg. I have changed the light of the original photo.
Robert Zünd – private collection. Title: Haus zwischen Nussbäumen (Schellenmatt). Date: c. 1850-1900. Materials: oil on canvas. Dimensions: 118.5 x 158.5 cm. Sold by Sotheby’s in Zürich, on May 27, 2008. Source: http://www.mfa.org/collections/object/lake-george-33800. I have changed the light and contrast of the original photo.