6040714 Guerin-Boutron advertising cards, "Histoire de France" (litho) by French School, (20th century); 42x26 cm; (add.info.: Charles V king from 1364 to 1380, The keys of Chateauneuf de Randon on the coffin of Duguesclin. The Guerin Boutron family from Paris founded the company in 1775. The company manufactures chocolate and for advertising purposes, Guerin Boutron attached chromolithographs on various themes, in this case historical scenes of France to its chocolate bars.); Photo by Archives Toutain.