Independence Day: 1939

Found on the Library of Congress, where they have a large number of WPA posters. There is no credit for the author.

Wow, what an amazing piece of Americana. Where did you find it? I googled the WPA and the Federal Arts Project and found out a little bit more about this poster project, rather short lived as it was. Is there any notation on the artist?

I'd like to use the image in my blog, with a hat tip to you if you approve.