Daddy, what did You do in the Great War?

Daddy, what did You do in the Great War? — British World War One poster

We'll finish the job poster, United States, World War I (POSTERS 27)

Save your child poster, United States, World War I (POSTERS 34)

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

World War I US Army Air Service Recruiting Poster Source3

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

Uncle Sam needs that extra shovelful poster, United States, World War I (POSTERS 28)

Pro Patria! poster, United States, World War I (POSTERS 17)

Dads Day poster

Yiddish WWI poster2

Grand Slang sample

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