First off , verticle DPM , not odd but rare. The cloth is very soft and light, not wind proof fabric but not tough hard cotton more smooth and warm feeling stuff. The colours are very deep and the black has a tint of purple to it like early DPM.
Standard NZ zipper
The back, same verticle DPM
Nylon webbing to reinforce the snap fasteners ? This is common throughout this jacket including inside the jackets pockets. These are sewn in place then held by the popper. Inside the jacket pockets may mean that this was done during production apposed to retrofit ?
This jacket features no labels and no evidence of one ever fitted anywhere , no tell tail signs of ghosting or stitching. I can only find a sticker saying " inspected by 88".