 Sava was again raised and refurbished after World War II . Armed with two single 105 mm ( 4 @.@ 1 in ) gun turrets , three single 40 mm ( 1 @.@ 6 in ) gun mounts and six 20 mm ( 0 @.@ 79 in ) weapons , she served in the Yugoslav Navy from 1952 to 1962 . Afterwards , she was placed into the hands of a state @-@ owned company , which was privatised after the breakup of Yugoslavia . As of 2014 , Sava was serving as a gravel barge . In 2005 , the government of Serbia granted her limited heritage protection after citizens demanded that she be preserved as a floating museum , though little else has been done to restore her as of 2014 . The ship is one of only two surviving Austro @-@ Hungarian river monitors from World War I , the other being SMS Leitha , a much older monitor , which has been a museum ship anchored alongside the Hungarian Parliament Building in Budapest since 2014 . 
