M1 155mm gun Long Tom (USA)

This model continues my small contribution to towed artillery models in 1:76 scale. I hope it is of interest.
The gun is the predecessor of the M198, which in turn preceded the current M777 in the US and other armies (models of both already provided to the best of my ability). Long Tom was used in WW2 and the Korean War, and in later years.
The model is based on an old .max shell model that was available on various sites, and converted to a starting .stl using the excellent Yobi3D site (file