Koko Kyouwakoku (Republic of Koko) - Page 27 - Shipbucket
Zao Class Heavy Cruiser: IJN Kunimi - Shipbucket
Japan - Kongo Class Battlecruiser/Fast Battleship - Shipbucket
Koko Kyouwakoku (Republic of Koko) - Page 27 - Shipbucket
Japan - Never built IJN ships. - Shipbucket
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Submarines - Page 70 - Shipbucket
Zipang ocean liners and other civilian vessels - Shipbucket
Zbur-Class (alternate concepts) - Shipbucket
Treaty Cruiser Design Challenge - Page 2 - Shipbucket