XEE4173222 Workers\' demonstration on May 1, 1893. Sign the three eight (8 hours of work, 8 hours of rest, 8 hours of sleep). One of the newspaper " Le petit Parisien??????on 7/05/1893 (engraving) by French School, (19th century); Private Collection; (add.info.: Workers\' demonstration on May 1, 1893. Sign the three eight (8 hours of work, 8 hours of rest, 8 hours of sleep). One of the newspaper " Le Petit Parisien??????on 7/05/1893,); Stefano Bianchetti.