It was easy for a manufacturer of airplanes to run an ad during World War II. They were obviously part of the war effort. This ad is from the November 1943 National Geographic.
Click on image to see it larger.
I will give you some ads this week that didn't have it as easy as Martin Aircraft. In fact I'd say one company was nearly pulling at loose threads in order to show they were doing their part. But more of that tomorrow.