Join the Air Service--Learn-Earn.

Join the Air Service--Learn-Earn. LOC Summary: Poster showing the Air Service insignia, various aircraft including airplanes and dirigibles, and a crew tending to a plane in the foreground. LOC Notes: Caption: "Give 'er the gun.". Date Created/Published: 1917. World War 1 poster provided by LOC. Original medium: 1 print (poster) : lithograph, color ; 76 x 51 cm.