I've had one push button attend our corral at the Concorso Italiano which had the same front end as in this picture. The front grill was 2-piece instead of being the folded one-piece grill that we're all familiar with.
It has been my impression that only the first 20 or so Panteras had 2 piece grills, but I believe a few such grills were installed on a few later cars.
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