428-GX-K-108076_Box 875:  A view of a hand grenade explosion.  The students of the Basic Underwater Demolition SEAL Training Class 83 are being instructed in throwing grenades at Naval Air Base, Coronado, California. Photographed by PHAN M.A. Cummings, March 12, 1975.   Photographed from reference card.  (2015/12/22).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
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