Yeah, I'm sure the assembly workers didn't match headlamp manufacturers, but that car is my 14th RR and the 1st Tung-Sols I've seen on one.
All have been original cars, mostly St.Louis with a Lynch & L.A. in the mix. All matching-set GEs until this car.
I remember the Tung-Sol name from long ago as an parts-store supplier.
It could be that with the significant sales (and therefore build) increases of '68 - '69, Chrysler was sourcing headlamps anywhere they could.