Nieuport 28C.1, vintage airplane image. Original public domain image from The Smithsonian Institution. Digitally enhanced by… https://www.rawpixel.com/image/10103391/photo-image-rose-plant-handsFree Image from public domain licenseV-mail. In the V-mail room at the Pentagon building, Washington, D.C., an armed courier delivers letters for filming and… https://www.rawpixel.com/image/12307380/image-face-paper-personFree Image from public domain license