Carlo Bossoli – private collection. Title: A Panorama of Constantinople From Uskudar. Date: 1854. Materials: gouache on paper laid on canvas. Dimensions: 40 x 135 cm. Inscriptions: C. Bossoli 1854 (lower left). Sold by Christie’s in London, on December 7, 2010. Source: http://www.christies.com/lotfinderimages/d53912/d5391279a.jpg. I have changed the contrast of the original photo.