5909109 Advertising chromolithography of chocolates Guerin Boutron, work instruments, 84 varied subjects, the anvil (chromolithograph) by French School, (20th century); 41.39x70.06 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 the tools, the anvil); Photo by Archives Toutain; French, out of copyright.