1971 Duster - correct hubcap options

My brother is putting the steel wheels back on his Duster and is wondering which beenie hubcap is correct

WITH or WITHOUT Plymouth lettering ????

Sans lettering. This place would know.


https://www.amcri1.com/1971-plymouth-duster-340/

my understanding is lettering for 70, plain for 71.

I am planning on using these on my 70 Duster.

Those are for a 1968.