were armed with 10.5cm guns were rearmed with these weapons. In World War II the 15 cmSKL/45 was widely used as coastal artillery and as primary armament
List of naval guns 5.2 cmSKL/55 naval gun SK - Schnelladekanone (quick loading cannon); L - Länge in Kaliber (length in caliber) "48-57 MM CALIBRE CARTRIDGES"