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Advertisement for cod liver oil, called "Gaduase". It features a sepia tone illustrated portrait of Jean Gutenberg (Johannes Gutenberg; a German inventor, printer and publisher), and three illustrations of a printing house. A large illustration depicts two men standing by a large printing equipment and one of the men holding a piece of paper. A small illustration in the top right corner shows a man working on a typesetter.
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The National Library of Medicine believes this item to be in the public domain. (More information)