There were 2 versions of them in 71 and only 71Yes, I belive the rear-edge hood trim was only in 71.
I also believe the tiny black plastic inner-fender shrouds up by the winshield were larger in 71, then resized smaller in 72-73.
I have seen many factory cars with these, and just as many factory cars without them.
I have always wondered what the criteria for which cars got them was. I eventually arrived at the opinion that it is determined by which factory they came from, but I have never researched this.
Any clue on these things?
No 72 or 73's had them