| Campaign buttons are used in an election as political advertising for (or against) a candidate or political party, or to proclaim the issues that are part of the political platform. In "celluloid" buttons, first used in 1896, one side of a metal disk is covered with paper (printed with the message) and protected by a layer of clear plastic. Since 1916, buttons have also been produced by lithographing the image directly onto the metal disk. Thousands of buttons are produced and distributed to the public. celluloid-type button is fastened to a garment using a pin on the back side of the... |
