911s headrests - were they an option?

[FGS]

Hello,

here again calling up communal knowledge.

I’ve just received the CoA for my ’72 2.4 S/E; under the “optional” chapter the certificate doesn’t mention headrests.

My doubts:

-were headrests in bundle with the car or were they optional?

-if they were an optional and if the buyer didn’t choose them, did the seats have however the holes on the top?

-Original interiors were made of black vinyl with “Pepita” (b/w pied de poule) center. On the rear seats, should the center be in b/w like the front ones?

Thanks

[RSTarga]

i think by 72 they were DOT requirement.