Barend Cornelis Koekkoek – private collection. An Extensive Summer Landscape with Travellers on a Path (1848)
Materials: oil on panel. Dimensions: 78.5 x 105 cm. Sold by Sotheby’s in Amsterdam, on December 15, 2009. Source: http://www.sothebys.com/en/auctions/ecatalogue/2009/19th-century-european-paintings-and-modern-contemporary-art-am1086/lot.9.html. I have changed the light, contrast and colors of the original photo.