Special early 1964 features on 1965 cars

[21window]

Can someone please help me identify a 64-early 65 rear decklid grill?

I know it is taller than the later grills, could someone point to a thread about them
or tell me the difference?

Thanks I searched and failed.

Edited to add pics: First grille I think is a 67. in the second pic notice the spacing of the rivets from the top of the grille compared to the 67.

67

Early?

grille in question below