SMS Gneisenau
SMS "Gneisenau" was an armored cruiser of the German navy, part of the two-ship . She was named after August von Gneisenau, a Prussian general of the Napoleonic Wars. The ship was laid down in 1904 at the AG Weser dockyard in Bremen, launched in June 1906, and completed in March 1908, at a cost of over 19 million goldmarks. She was armed with a main battery of eight guns, had a top speed of , and displaced at full combat load.
SMS Nautilus (1906)
"Nautilus" was built by the AG Weser shipyard in Bremen; her keel was laid down as "mine steamer A" on 19 December 1905, and her completed hull was launched as "Nautilus" on 28 August 1906. After completing fitting-out work, the ship was commissioned for sea trials on 19 March 1907, which lasted until 25 May. She was initially used for mine warfare training and was based in Cuxhaven. "Nautilus" took part in the annual fleet maneuvers in August and September 1907 and 1908 before being decommissioned in Kiel; her role in the peacetime fleet was then taken over by her recently commissioned sister ship . In 1909–10, "Nautilus" was modernized at the "Kaiserliche Werft" (Imperial Shipyard) in Kiel. Her stern overhang was extended by , bringing the ship's overall length to , and her superstructure deck was extended further aft. The work was completed by January 1910.