Navy Gulf War Nuclear Submarine - 502 Pieces - BrickArmyToys
WWII German Type VIIB U-Boat Building Set Diecast Model by Cobi Toys | Fairfield Collectibles - The #1 Source For High Quality Diecast Scale Model Cars
LEGO MOC U-Boat Type XXI by Resqusto | Rebrickable - Build with LEGO
Title - War Bricks USA USA
Finished my U-Boat, lots of extra details added : r/lego
WWII U-505 Submarine Building Set : Arts, Crafts & Sewing