LANOS (Henri). Alphabet of the War. Hachette et Cie. [Paris. ca. 1918]. In-4 (30,4 x 23,6 cm). (12) pp. including covers: soft cardboard covers illustrated in color on a beige-pink background, a poilu and a child on a shell, on the first one, X, Y and Z, illustrated with a Zeppelin and the Yser, on the second one. Alphabet of the Great War by the French painter and watercolorist, Henri Lanos (1859-1929). One illustration per page with two or three red initials. Aviators throwing bombs, Homage to our Illustrious Joffre, Soldiers in the Trench. No specific caption, but a short sentence, without verb, using several letters to describe the scene. Reinforcement inside back cover, loose leaves. Attached: - ABC of the three colors. Series V. N° 6. The Imagery of Paris. G. Gérardin. Printer-Publisher. Paris. [Circa 1920]. In-8 oblong (18,5 x 27,5 cm). (14) pp. : covers of fine soft cardboard, the first one lithographed in colors, the barrel of a cannon from which explode the letters of the alphabet and A, B, C, in blue, white, red, publisher's initials in the center of the second one. In perfect condition. Two uncommon military primers on the First World War.