Source: the opera singer Geraldine Farrar performing at a Liberty Bond rally in New York during World War I. George Grantham Bain Collection, Library of Congress, http://loc.gov/pictures/resource/ggbain.26652/. Photoshopped.
Source: George Grantham Bain Collection, Library of Congress, http://www.loc.gov/pictures/item/ggb2004000135/. Photoshopped.
A section of girder from the U. S. Navy zeppelin Akron, probably early 1931. San Diego Air and Space Museum Archives, Glen Bates album, photo 000089. http://www.flickr.com/photos/sdasmarchives/10561571625/. Photoshopped.