[Leaflet about American airplane roundels]

Leaflet about American airplane roundels, circa 1918. Text: "When you see this sign on an airplane [red, blue, and white roundel] / He is an American / Don't shoot at him / He is trying to help you.

Inscription on album page: "Dropt [dropped] by American ships to our infantry."

Part of Album Two from the Nancy Harkness Collection of World War I Photograph Albums, circa 1914-1919.

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