5909087 Guerin-Boutron advertising cards, "The headdresses of France\'s regions" (litho) by French School, (20th century); 30.28x47.18 cm; (add.info.: 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 the headdresses of the regions of France, Bolbec en Caux, lower Seine, to his chocolate bars. Illustration by Emile Jammes.); Photo by Archives Toutain; French, out of copyright.