Mopar, Chevy and Ford all had these style caps, although they are more commonly associated with Chevy and Ford and in particular Camaro/Chevelle, Mustangs.
I had a set of mint dodge caps which I bought from USA and on-sold here in
Australia sometime later (after I sold the car I used them on, a 1970 Valiant hardtop).
I really like these caps and I'd eventually like a set for my 68 cuda. But since they werent available any larger than 14 inch for Mopars, I may try to obtain a Ford 15" set - some of which are available without any brand stamping in the centre, so no one would really know.