Correct 1973 Ralley Center Cap

[AmazenToys]

I have had my 1973 Challenger for 29 years, noticed I am missing the round (2 1/2 inch) center pop-out of the Ralley cap. This weekend I seen a Mopar swap dealer, and he tried to tell me these are incorrect for 73, and I should have the Ralley cap without the center pop-out, the solid one. Who can confirm what is correct for 73.

[mopardave]

that would be correct. the original 72-74 cap had a machined facing, the center cap style was 75-78

the picture is of a correct 72-74 rallye center cap

i have NOS if your interested