Boeing RC-135 Rivet Joint

(Photo: U.S. Air Force/Tech. Sgt. Robert J. Horstman)

(Photo: U.S. Air Force/ Senior Airman Greg Davis)

(Photo: U.S. Air Force/Master Sgt. Scott Wagers)

(Photo: U.S. Air Force/Tech. Sgt. Deborah Davis)

Source: AF.mil