Fisher advertisement describing its part in the manufacture of gyroscopic instruments used in bombsights. The picture depicts a bombardier using the bombsight over a target.
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Dean Cornwell (1892 - 1960) was an American illustrator and muralist. His oil paintings were frequently featured in popular magazines and books as literary illustrations, advertisements, and posters promoting the war effort. Throughout the first half of the 20th century he was a dominant presence in American illustration. At the peak of his popularity he was nicknamed the "Dean of Illustrators".
He illustrated the work of authors including Pearl S. Buck, Lloyd Douglas, Edna Ferber, Ernest Hemingway, W. Somerset Maugham, and Owen Wister. He did advertising illustrations for hundreds of companies including GM, Eastern Airlines, Pennsylvania Railroad, Paul Jones Whiskey, Aunt Jemima, Seagram’s Gin, Woodbury Soap, Palmolive, Coca-Cola, Goodyear, New York Life and Squibb.
https://en.wikipedia.org/wiki/Dean_Cornwell
http://americanillustration.org/project/dean-cornwell/