Lithography by August Dircks (based on a portrait by Georg Friedrich Adolph Schöner), showing <a href="https://de.wikipedia.org/wiki/Arnold_Duckwitz" class="extiw" title="de:Arnold Duckwitz">de:Arnold Duckwitz</a> (1802–1881), politician from Bremen, Germany, and in 1848/49 secretary of trade and secretary of the navy in the provisional government of the Deutscher Bund (the “German Confederation”).
August Dircks
Dirk J. Peters (Hrsg.): <i>Der Norddeutsche Lloyd – Von Bremen in die Welt – „Global Player“ der Schifffahrtsgeschichte</i>. Hauschild, Bremen, 2007