330-PS-133:  Deputy Fire Chief C.L. Potter of the Fifth Naval District’s Structural Fire Fighting School, the nation’s largest fire school at Norfolk, Virginia, demonstrating the dangers of static electricity to a group of students, March 11, 1950.  (8/18/2015).
<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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