Anonym: Jumbo aesthetic: Clark's O.N.T. Spool Cotton, Lithographie, 13 x 8 cm, ca. 1870–1900, Ersteller: N. Y. : Buek & Lindner Lith.; Bildquelle: Boston Public Library Collection: 19th Century American Trade Cards, Accession No.: 10_03_002447a, https://www.flickr.com/photos/boston_public_library/9564244888/in/photolist-fyUXEt-fzafMh-fyUXp4-fzafMW-g7SfvF-fxUXDA-fzafQG-fzafD5-fxEEMk-fzafyL-fyUXkX-fzafEh-fzaicL-fzafL3-fzafHq-e3gwLU-6rKc9u-g7Rqec-g7RwfG-6dsQXB-fyUZYz-fzafV3-e3gwKu-g7RwBy-g7RKHm, Creative Commons Attribution 2.0 Generic license, https://creativecommons.org/licenses/by-nc-nd/2.0/.