Original WWI U.S. Army Air Service (USAAS) Named Grouping of Personal Effects and Uniform Items For Sgt. Timothy Riordan, 14th Co., 2nd Air Service Mechanics German Machine Guns The barrel looks to have

The barrel looks to have been cleaned and polished over the years

as well as the recoil spring and deactivated bolt

though it is empty

and a pith helmet

and the fittings do show verdigris from age and oxidation

Original WWI U.S. Army Air Service (USAAS) Named Grouping of Personal Effects and Uniform Items For Sgt. Timothy Riordan, 14th Co., 2nd Air Service Mechanics German Machine Guns The barrel looks to haveOriginal Items: Only One Grouping Available. The United States Army Air Service (USAAS) was the aerial warfare service component of the United States Army between 1918 and 1926 and a forerunner of the United States Air Force. It was established as an independent but temporary branch of the U. S. War Department during World War I by two executive orders of President Woodrow Wilson: on May 24, 1918, replacing the Aviation Section, Signal Corps as the