[dazza]

... stamped anywhere on an OEM grille for a 72?

I don't see one on mine, but that's not to say the PO swapped it at some point. I'm asking because I may buy one that's "NOS - in the box".
Is there a way to tell the difference from a repro when you don't have a known OEM to compare it to? I'm sure the aluminum is thinner and lightweight, but is there any specific, obvious detail?

Thanks