5909078 Advertising chromolithography of Guerin Boutron chocolates (chromolithograph) by French School, (20th century); 42.24x26.06 cm; (add.info.: The Guerin Boutron family in Paris founded the company in around 1775. The factory manufactures chocolate, to retain its customers Guerin Boutron joined his tablets chromolithography on various topics, here historical scenes, 27. Charles VI (1380-1422) Assassination of John the Fearless in Montereau (1419)); Photo by Archives Toutain; French, out of copyright.