The O-I was Japanese super heavy tank of the second world war. Whether or not an actual prototype was constructed of the massive 150 ton tank is not completely clear, but to this day a single track link still exists for the tank.
Oi tank 150t Takom 1:35 inbox
MOC-52862 Lockheed Martin F-35 A Lightning II Model(1517PCS)
MOC Bricks Archives
Japanese Super Heavy Tank O-I Oooki-I-Gou with RC - MOC 55856 (Speed Build Review)
1/350 MOC UCS USS Enterprise CVN-65 Nuclear-powered Aircraft Carrier
MOC 1/300 Frederick the Great Military Maritime Battleship Model Assembly Toy Building Blocks Set (3339PCS)
Rambly 1/30 Tank Building Blocks, For Japanese Super Heavy Tank O-I, MOC- 55856, Tank Construction Kit WW 2, For Military Fans, Collectable MOC Set Toy, 1884 Pieces, 35.9 x 21.4 x 15.5 cm: : Toys
1/35 MOC Darkstar SR-72 10 Mach 10 Hypersonic Stealth Bomber
Rambly 1/30 Tank Building Blocks, For Japanese Super Heavy Tank O-I, MOC- 55856, Tank Construction Kit WW 2, For Military Fans, Collectable MOC Set Toy, 1884 Pieces, 35.9 x 21.4 x 15.5 cm: : Toys
957 pcs MOC-51602 1:35 Ji-Ro, Japanese Self-Propelled Gun – Joy Bricks
1884 pcs MOC-55856 1:30 O-I, Japanese Super Heavy Tank – Joy Bricks