<p>This is the very first Boeing 747 constructed, dating from 1969.
</p><p>In this photo, the plane is not flight ready, with the engines dismounted. However, it does see occasional use as a test bed for new engines to be used on newer aircraft.
</p><p>This example is designated under the model number 747-121, indicating an initial 747 model that was built to the specifications of Pan American Airways (Boeing customer code 21), the launch customer. However, this prototype remained with Boeing and never flew for Pan Am or any other revenue airline.
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N7470 "City of Everett," Boeing 747-121
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/56619626@N05">skinnylawyer</a> from Los Angeles, California, USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/skinnylawyer/5527676580/">Boeing 747</a>