Air service medical manual
A 1918 United States War Department manual from the Division of Military Aeronautics, published in Washington for military air service personnel and pilots, covering medical care for flyers. The four pages show early military biplanes photographed on open ground, some with markings such as serial numbers, a cross insignia and propellers, giving a designer a set of period aircraft silhouettes and grassy field settings to adapt for vintage aviation themes.
