Zoom Enlarge These mini masterpieces originated in nineteenth-century Europe and are now highly valued as an important part of the history of graphic design, popular art and social tradition. Learn more about the project Zoom Enlarge Zoom Enlarge Zoom Enlarge Zoom Enlarge Zoom Enlarge Zoom Enlarge Zoom Enlarge Poster stamps were printed in the same way as postage stamps, in multiples on large sheets separated by perforated edges with a glued backing. Their visual style, originality and intricacy made them popular collectables. Learn more about the project