The two 6 x 8-1/2 inches hardcover books with together close to 800 pages were published by order of the Oberkommando der Kriegsmarine (High Command of the Reich Navy) and printed 1943 from the Verlag Berhard & Graefe in Berlin. This extremely hard to find set is by far the best Naval dictionary ever printed in the Third Reich! It gives thousands of nautical terms and terms from the naval warfare which then are translated in English, French, Spanish and Italian on the same page! The second book (called the "Stichwortverzeichnis" or keyword index book) is a guide on how to find which term in which language in the main book! This extremely valuable set includes terms from regular seamanship, orders for the engine room, orders for the whellman, anchor order terms, navigation, maritime law as well as law of naval warfare, the most common abbreviations fir the sailor in five languages and, and, and...!