First sighting of the Convoy PQ-17 by a German Blohm &amp; Voss BV 138 aerial reconnaissance plane, early in its voyage to Murmansk, on 1 July 1942.
U.S. Navy photo <a rel="nofollow" class="external text" href="https://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-71000/NH-71383.html">NH 71383</a>