THREE FRENCH POSTERS. (Guy Arnoux (French,). GALA DU COMMERCE ET DE L'INDUSTRRE, 1937, together Robert Mathieu (French, 20th century), "Aide-Nous a Sauver Montwortre" and "Hippodrome Gaumount Palace", printed by J.Delattre. Three color lithographic posters - Unframed, largest: 27 in. x 19 1/2 in. Estimate $300-400