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Protective mask seal testing.
Summary
Sgt. Joseph Bilbrey, a flight operations sergeant with Higher Headquarters Company, 38th Combat Aviation Brigade, tests the seal of his M40 protective mask on Sunday, March 24, 2013, at the Shelbyville Ind., National Guard Armory. (U.S. Army National Guard photo by 1st Lt. Tyler Mitchell/Released)
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Date
24/03/2013
Source
Defense Visual Information Distribution Service
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