an Entity references as follows:
SMS Viper was a torpedo boat of the Austro-Hungarian Navy. Viper was built by the British shipbuilder Yarrow between 1895 and 1896 and formed the basis for the following Cobra-class torpedo boats. She was renamed Torpedoboot 17 in 1910 and served through the First World War as a patrol boat and minesweeper. She was scrapped in 1920.