A list dated end December 1912 mentioned the German ocean going steam fishing vessel Dr. Ehrenbaum with as homeport Altona, Germany, pennant SD 23 and call sign RJQN.
Source
Archive Ministerie van Buitenlandse Zaken A-dossiers inventory number 235 (National Archive, The Hague, Netherlands).
Source
Archive Ministerie van Buitenlandse Zaken A-dossiers inventory number 235 (National Archive, The Hague, Netherlands).
