United States. Three Army Air Force/United States Air Force Badges certificate_of_authenticity then editor in chief of

then editor in chief of the Army School’s Medical Department’s fifteen-volume official history entitled “The Medical Department of the United States Army in the World War

HERMELING" on the reverse

Instituted 19 May 1900

the chains of which are broken

the Americans and French built their first parallel and began the bombardment

United States. Three Army Air Force/United States Air Force Badges certificate_of_authenticity then editor in chief ofUSAAF Senior Aircrew Badge (two piece construction, in silvered brass, unmarked, measuring 76 mm (w) x 28 mm (h), dual push pins); USAAF Bombardier Badge (in sterling silver, marked "STERLING" on the reverse, measuring 76. 3 mm (w) x 25. 3 mm (h), horizontal pinback); and USAF Master Navigator Combat Systems Officer Observer Badge (in silvered metal, maker marked "GEMSCO" and marked "A. G. O. G 2" on the reverse, measuring 78 mm (w) x 34. 8 mm (h),