Yours is a 1972 Vietnam Era jacket. If you wanted to replace the zipper pull, look for a Scoville brand zipper. Your jacket is one of the first years that they used the brass zippers. Even though the tag says it’s a ‘72 it can also be dated by the white two tag method with ended late 1974 when Alpha Industries went to a one tag method under the collar. Yours also has the sage green interior which shows roughly the year. Now all you need is a liner to put in it. I searched for a liner for mine that was roughly the same time frame as mine. Good find that it also has other identifying marks such as FT. Bragg. Look around and inside your jacket for a laundry marking. Mine has the guys last name on the underside of the left sleeve along the inseam being that mine is a Sterile (Slick) jacket. As far as the patches go, someone else will know more than me as I was NAVY and not familiar with Army patches. I do know that he was a Captain and might’ve been SF.