Has anyone seen these hubcaps before?

they came on this i just nabbed off clist. the car has deep rims. the guy showed me pics of the car on the showroom floor and said the dealer had them on it in feb 1970. he was the original owner until last week.
weird move on the dealers to put plymouth caps and rims on a dodge swinger
love the tires too. too bad he left it covered under a lean to for so many years. but i have the will to bring her back to life... 35000 original miles 4 speed 340 8.75 with reverse lockout still intact.

Probably had them lying on the shelf, at they slapped them on the Dart and ditched the dog dish caps to dress it up.