This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
smithsonian institution smithsonianinstitution man portrait airmail pilot aviation aviator cap moustache mustache sweater button ward goggles aviators aviators cap aviatorscap flying goggles flyinggoggles national postal museum nationalpostalmuseum earl f. ward earlfward earl ward earlward e.f. ward efward us air mail usairmail us