Sorry but still didn't get hold of my friend yet. I've heard NOS over the counter parts and assembly line installed parts sometimes have differences. I've seen this with fenders and have read about other stuff on-line. Might be manufactured at different times, different sources, work shifts (person doing the work), changing of tooling, etc. My grille is from a 1972 Duster 340 and will compare it with 1971's and the NOS piece. Like I mentioned before my friend has a BUNCH of them. My 1972 grille would not fit a very early 1969 production date 1970 Duster 340 but would fit a later production 1970 Duster 340. There may or may not have differences but will need to compare in order to find out. I did not mean to ruffle any feathers. When I get these pictures I will be posting them.
Thanks