The question was regarding the grille...
Yes the hood is from a later Nuova Super...but...and this might be getting silly now...the front fascia panel below the grille doesn't have the vent slots located between the inner lamps and the main "cuore" which was a feature of the later Supers. Did the owner fit a newer hood to the older car or did he/she fill in the fascia vent slots and plastic grille mounting holes in the fenders on a later model Nuova and retrofit the newer grille or...? Now I'm starting to sound like a weiner that reads Road & Track or Car & Driver and is suddenly an "expert" on cars! AAAAH!!
I have a collection of headlamp trim rings...they are made of either polished stainless steel or they are cast in a zinc alloy and chrome plated (I know because one is cracked)...