N81EU on the Azores during the second crossing of the Atlantic ocean.
<a href="//commons.wikimedia.org/w/index.php?title=User:Zeilentrafo&amp;action=edit&amp;redlink=1" class="new" title="User:Zeilentrafo (page does not exist)">Zeilentrafo</a>
CC BY-SA 3.0
Thomas Scherer