Adolf Schreyer, Rastende Araber an einem Marmorbrunnen, 1856, Öl auf Leinwand, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/1370 Adolph von Menzel, Der Bärenzwinger im zoologischen Garten (The Bear Pit in the Zoological Gardens), 1851, lithograph on Chine appliqué on wove paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/9075 Adolph von Menzel, In a Railway Carriage (After a Night's Journey), 1851, Gouache, with touches of pastel and oil paint, on cream wove paper, laid down on Japanese paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/215327