The Cruise of the German Raider Atlantis - Joseph P. Slavick - Google Books

https://books.google.de/books?id=9CJmvN0KYTMC&pg=PA146#v=onepage

Slavick, a captain with the US Air Force, recounts the adventures and victories of one of Germany's warships that, disguised as a merchant vessel, captured or sank 22 merchant ships, broke enemy codes, and got hold of valuable intelligence material from…