<a href="https://en.wikipedia.org/wiki/United_States_Coast_and_Geodetic_Survey" class="extiw" title="en:United States Coast and Geodetic Survey">United States Coast and Geodetic Survey</a> ship <a href="https://en.wikipedia.org/wiki/C%26GS_Ship_Pioneer_(1946)" class="extiw" title="en:C&amp;GS Ship Pioneer (1946)">USC&amp;GS Pioneer (OSS-31)</a> passing under the <a href="https://en.wikipedia.org/wiki/Golden_Gate_Bridge" class="extiw" title="en:Golden Gate Bridge">Golden Gate Bridge</a> ca. 1952
National Oceanic and Atmospheric Administration (NOAA) Photo Library
<a rel="nofollow" class="external free" href="http://usasearch.gov/search?v%3aproject=firstgov-noaa-images&amp;v%3afile=viv_1062%4025%3am3qr1X&amp;v%3aframe=viewimage&amp;v%3astate=root%7croot-20-20%7c0&amp;id=Ndoc27&amp;rpaid=&amp;">http://usasearch.gov/search?v%3aproject=firstgov-noaa-images&amp;v%3afile=viv_1062%4025%3am3qr1X&amp;v%3aframe=viewimage&amp;v%3astate=root%7croot-20-20%7c0&amp;id=Ndoc27&amp;rpaid=&amp;</a>