EntityQ366904· pop 6· linked from 10 articlesDelfinoSign in to saveattack submarineConnectionsWorld War IConceptAdriatic SeaEntitysubmarineEntitydolphinEntityLa SpeziaEntityKingdom of ItalyEntityFiatEntityknotEntitymetric horsepowerEntitynautical mileEntitytorpedo tubeEntityRoyal Italian NavyEntityLa Spezia Naval BaseEntityCategories1890 ships19th-century submarinesShips built in La SpeziaWorld War I submarines of Italy