Trade cards were a popular form of advertising between the 1870s and early 1900s. They came in packages of various products or were distributed free to customers. Collecting trade cards became a popular hobby and the cards often featured images that had little connection with the product advertised. Sets of trade cards featuring pictures of animals, birds, historical scenes, sites around the world, and other themes were issued to encourage collecting.
Courtesy of U. S. National Library of Medicine
Image featured in Discovering Quacks, Utopias, and Cemeteries: Modern Lessons from Historical Themes by Cynthia Resor