FWIW and maybe one small piece of the puzzle:
I have three ItalianTypo 2 7.62 conversion Garand
stocks -- these are about one half inch shorter than the standard '06 stocks.
All three were brand new (NOS ) and marked MT when I bought them . Two of them were in wrappers that included what I believe to have been the manufacturer's name: Something like " Mechanica Trentino ".