Acciaio-class submarine - Wikidata

Submarine Sighting Guide ONI 31SS-Rev. 1

Type XXX-class Submarine, The Wolfenstein Fanon Wiki

The Italian Monarchist: Italian Underwater Ace Gianfranco Gazzana-Priaroggia

Alfa-class submarine - Wikidata

File:US Navy 110515-N-QF381-002 The Los Angeles-class fast attack submarine USS Hampton (SSN 767) prepares to moor alongside the submarine tender USS Fr.jpg - Wikimedia Commons

Acciaio Class Italian Submarines

Acciaio Class Italian Submarines

Royal Naval Association - From the archives… Submarine HMS Unruly attacked a German convoy of several landing craft, a trawler and an ammunition ship on 7 October 1943 off the Dodecanese islands

Zulu class submarines (1952)

GMT Games - Beneath the Med

1374x810] The Acciaio-class submarines Volframio, left, and Bronzo, right, in the spring of 1942 : r/WarshipPorn