Hello from Le Mans

May I ask you a question about rear alloy decklid mounted on 911S 2.2 from 1970 and 1971.

I would like to know if all 911S 2.2 used to have a alloy decklid even on the last 71'chassis number (above 1400) or if steel deklid was introduce before the first 1972 911 ?

Thank you for your help.

Best regards