5909086 Advertising chromolithography of Guerin Boutron chocolates (chromolithograph) by French School, (20th century); 48.56x31.98 cm; (add.info.: The Guerin Boutron family in Paris founded the company around 1775. The factory manufactures chocolate, to retain its customers Guerin Boutron attached to his tablets chromolithography on various topics, here maps, ten of hearts, goodness); Photo by Archives Toutain; French, out of copyright.