Necchi 709 4

Question

Hi.  Does anyone have operating instructions/manual for a Necchi 709-4?  I called Allyn Int. and they have none.  I've tried everywhere online that I could find.  Just a threading diagram will be greatly appreciated.  This machine hasn't been used in years and I would like to give it to a friend,  but have no instructions.  Thanks for any help.(Sorry I previously posted in the wrong section)