Our three lines of national defense / R. Peckner.

Poster showing a battleship, an industrial cityscape, and military personnel behind an American flag.
Title continues: The smoke of America's factory stacks is a signal of our workers' and employers' loyalty. It means more guns - more ships - more food. Our industries are the third and main supporting line of defense - our base of supplies. Without them the Army and Navy would be helpless. As good patriots let us strive to keep our industries strong.
Issued by the National Industrial Conservation Movement, 30 Church Street, New York City. Copies supplied on request.