The Powder Toy - Schwerer Gustav Rail gun by AviatorGuy

A WWII German "Schwerer Gustav" Rail Gun. The two built,Gustav and Dora, fired 800mm guns that shot shells weighing seven tonnes up to 23 miles. Both were destroyed before the wars end.

Toyseasy YW2312 Gustav Railway Gun Doragus

Schwerer Gustav - Wikipedia

How to calculate the weight of an artillery piece - Quora

1/72 German Schwerer Gustav Railway Gun Model with 3 Variants

1/72 German Schwerer Gustav Railway Gun Model with 3 Variants

ToysEasy YW2214 Gustav Railway Gun - Show.Z Store

In Stock Transformation TOYSEASY YW2312 Schwerer Gustav YW-2312

1/72 German Schwerer Gustav Railway Gun Model with 3 Variants

ToysEasy YW2214 Gustav Railway Gun - Show.Z Store

Schwerer Gustav German Railway Gun - 3846 Pieces - BrickArmyToys

In Stock Transformation TOYSEASY YW2312 Schwerer Gustav YW-2312