428-GX-K-57064: Underwater Demolition Team trainee Seaman Glean R. Guadagine watches the explosion caused when he fired a demolition charge on Pineros Island, Puerto Rico.  Photographed by W.R. Curtsinger, August 7, 1968.  U.S. Navy photograph, now in the collections of the National Archives.  (2016/02/23).  Original is from reference card only.
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