 The ships all had their armament repeatedly revised throughout their careers . By 1905 , each ship had had two of the 15 cm guns replaced with two additional 12 cm guns , and their secondary battery was standardized at eight 57 mm guns and eight 37 mm guns , with the exception of Puglia , which had six and two guns , respectively . Puglia had also had her two torpedo tubes removed by this point . In 1914 , Liguria had all of her 15 cm guns removed , along with six of the 37 mm guns . Her armament was reduced further in 1917 when she was refitted as a minelayer ; at this point , she mounted only six 12 cm guns and two 37 mm guns . Starting in 1915 , Etruria and Lombardia were equipped with only six 12 cm guns , six 57 mm guns for Etruria and eight for Lombardia , two 37 mm guns , and their torpedo tubes . At the same time , Elba was rearmed with six 12 cm guns , two 37 cm guns , and one machine gun ; she retained her torpedo tubes . 
