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.
HYUA Tank Building Blocks MOC Set, MOC-55859 1/30 O-I Japanese Super Heavy Tank Building Blocks MOC Set, Gifts for Tank Collectors (1867PCS) : Toys & Games
O-I super-heavy tank - Wikipedia
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Military MOC
MOC-36720 Sukhoi SU-35 Flanker Model(1659PCS)
PCS: 1884 pcs, Weight: 2.1KG, Dimensions: W 35.9CM, L 21.4CM, H 15.5CM, Licensed from designer super_cacti, Browse other Military MOC, Ship
MOC-55856 1/30 O-I Japanese Super Heavy Tank
MOC-57728 1/30 Type 3 Chi-Nu Japanese Medium Tank
5391PCS MOC-144534 10305 Knight's Castle Modular Expansion – Joy Bricks
High Simulation: Authorized by the original design of super_cacti, it truly restores the MOC-55859 building block group, with the same scale and rich
HYUA Tank Building Blocks MOC Set, MOC-55859 1/30 OI Japanese Super Heavy Tank Building Blocks MOC Set, Gifts for Tank Collectors (1867PCS)
Panzerhaubitze 2000 - 155mm Tank Howitzer - Xingbao-XB-06047 (Speed Build Review)
MOC-37260 1/200 WW2 UCS IJN YAMATO Building Blocks Set