Estate Sale Find. Person worked for Northrop Grumman here in Atlanta

Very Heavy and Thick Manual in original folder . 

Well used but overall In decent preowned condition considering its age and use . 

Manual seems to miss few front pages ( title page etc )  ..

There is wear to folder , pages .Some of the pages are slightly lose , have small tears . Few pages have words written in it . ETC ETC (see photos)

I always do my best to list and describe items as accurately as possible, but occasionally, I may make a mistake. Please send me a message if you feel I have overlooked something.

PLEASE ASK ANY QUESTIONS , LOOK AT ALL PICTURES THEY ARE AN  IMPORTANT PART OF MY DESCRIPTION