“Regnbue på søen, en krydsende jagt med nogle andre skibe” (Rainbow at Sea with some cruising Ships). 1836. Oil on paper. Collection of the Nivaagaards Malerisamling, Nivå. In the public domain in the United States because it was published before January 1, 1924. via https://commons.wikimedia.org/wiki/File:Eckersberg,_CW_-_Regnbue_p%C3%A5_s%C3%B8en,_en_krydsende_jagt_med_nogle_andre_skibe_-_1836.jpg
“Pont Royal seen from the Quai Voltaire.” 1812. Oil on canvas. Image © Statens Museum for Kunst, Copenhagen. Fair use license. via https://www.fondationcustodia.fr/C-W-Eckersberg-1783-1853-248
“Løvhytte i Sanderumgaard Have.” 1807. Oil on canvas. © Hirschsprungske Collection, Copenhagen. Image Document.dk © 2019. Fair use license. via https://www.document.dk/2018/05/03/loevhytte-i-sanderumgaard-have-1807/