World War I poster Spirit of George Washington 1918

World War I poster of George Washington "The Spirit Still Lives" (1918) - (cropped)

Red cross poster, United States, World War I (POSTERS 64)

Red Cross poster, United States, World War I (POSTERS 69)

Red Cross poster, United States, World War I (POSTERS 52)

Red Cross poster, United States, World War I (POSTERS 43)

Back him up poster, United States, World War I (POSTERS 39)

Americans all poster, United States, World War I (POSTERS 18)

Liberty bonds poster, United States, World War I (POSTERS 35)

YMCA poster, United States, World War I (POSTERS 60)

Russian poster WWI 001

Victory Liberty Loan poster, United States, World War I (POSTERS 4)

Eagle poster, United States, World War I (POSTERS 76)