I skimmed through the Union file this am. There is no documentation as to Ithaca's reason for the purchase but emphasis seems to be centered on the model 60 and Charles Wilson's patent. The detailed schedule of model 60 guns and parts and pieces makes no mention of any manufacturing equipment.
The purchase agreement of March 1914 does state ""...all the letters patent together with tools, jigs, fixtures and special appliances, etc....the exclusive right to manufacture and sell same throughout the world."
As I stated earlier, here is no recorded of any manufacturing equipment. Main interest was Wilson's patent and the Model 60.
A detailed chronicle study of the file may provide some additional info.