488578 Paris, front and reverse of a promotional card for Lef癡vre-Utile (LU) biscuits, late 19th century (colour litho) by French School, (19th century); Private Collection; (add.info.: The French biscuit brand LU (Lefevre-Utile), founded in 1846 and now part of Kraft Foods, is still one of the best known names in biscuit production, of which the Petit-Beurre is the flagship product;); French, out of copyright.