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U.S. Marine Corps photo by Lance Cpl. Michael Petersheim/Released 110203-M-8527P-048.jpg
Feb 3, 2011
Gunnery Sgt. Clinton Schwarz, a chemical, biological, and radiological chief with the 24th Marine Expeditionary Unit, gives a brief about the M50 Joint Service General Purpose Gas Mask prior to a gas training exercise at the Marine Corps Base Gas Chamber on Camp Lejeune, N.C. Feb. 3. Marines with the 24th MEU trained on the new M50 JSGPM, M50 Joint Service General Purpose Gas Masks, which has been phasing out the 1980s-era M40 Field Protective Mask across the Marine Corps since September 2009.
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