On September 14th, 1914, one hundred years ago today, off the Brazilian island of Trindale, one of the stranger naval battles of World War I was fought between two converted passenger liners, one of which was disguised to look like the other. In a battle of doppelgängers, the German liner lost to the British ship that it resembled.
Cap Trafalger was a passenger liner built for the Hamburg-South America Line for their service between Germany and the River Plate. She was 613 feet long with a beam of 72 feet, 18,710 GRT and could carry nearly 1,600 passengers. She went into service in April of 1914, but by August, with the outbreak of war, she was requisitioned by the German Imperial Navy as an auxiliary cruiser. Cap Trafalger rendezvoused at the remote Brazilian island of Trindade, 500 miles east of the Brazilian mainland, with the gunboat SMS Eber, which transferred naval officers, ammunition and armaments to the liner. Two 4.1 inch guns and six one-pounder pom-poms were installed on the ship. All were manned by German naval personnel. The ship was given the mission to act as a commerce raider, sinking British merchant shipping.