Rjensen (Uploader). "The Republican Idea Of Protection - A High Tariff on the Monopolist's Wares, Free Entrance for Pauper Labor, and a Lock-Out for the American Workingman." 3 October 1888. Cartoon. Source: Scan from the original work. Collection: Samuel Halperin Puck and Judge cartoon collection, 1879-1903, George Washington University Library, Guide to the Samuel Halperin Puck and Judge cartoon collection, 1879-1903, Collection number MS2121, box 11, folder 10.