Home›Browse›SM UB-4🌐EnglishEnglishDeutschFrançaisPolskiالعربيةفارسی中文EntityQ824574· pop 7· linked from 60 articlesSM UB-4Sign in to save1915 Type UB I submarineOn the map2 mapped locationsAvailable in 7 languagesFrançaisDeutsch中文العربيةPolskiفارسیvia Wikidata sitelinks · CC0