Pierre-Henri de Valenciennes – private collection. Title: An Arcadian Landscape with Classical Temple and Aqueduct. Date: 1809. Materials: oil and canvas Dimensions: 205.1 x 156.2 cm. Inscriptions: P. Valenciennes/1809 (lower right). Auctioned by Sotheby’s in New York, on May 26, 2016. Source: https://www.sothebys.com/content/dam/stb/lots/N09/N09515/087N09515_7BFSH.jpg. I have changed the light and contrast of the original photo.