Canaletto – private collection. The New Horse Guards from St. James’s Park, London (c. 1749?)
Materials: oil on panel. Dimensions: 58.5 x 110 cm. Auctioned by Dorotheum on in Vienna, on October 17, 2012. http://www.dorotheum.com/uploads/pics/121017Canaletto.jpg. I have changed the light, contrast and colors of the original photo.