428-GX-USN1149130:   Hydrofoil Platform Gunboat USS Flagstaff (PGH-1) in foil-borne operation off the coast of Florida.   Photographed by Gerald G. Kallman Associates and received in 1971.  (5/15/2014).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/127906254@N06/18896062798/">428GX-N1149130</a>