LRI4600534 Poster of the United War-Work campaign exhorting people to give money to keep the american soldiers smiling, 1918 by American School, (20th century); Private Collection; (add.info.: World War I: United War work campaign poster representing a smiling American soldier with food and drink, aimed at raising awareness and collecting money, 1918 - WWI: poster of the United War-Work campaign exhorting people to give money to keep the american soldiers smiling - Private collection); Luisa Ricciarini; American, out of copyright.