Howitzer mountain (Object3D)

The M1841 mountain howitzer was a mountain gun used by the United States Army during the mid-nineteenth century, from 1837 to about 1870. It was designed to be lightweight and highly portable. This versatility permitted their use with mounted forces in areas where roads were little more than paths. 

My cannon model has both: Normal and LowPoly versions. You could select between blender (I used 2.79b), obj and x3d format.