The front turn signals (I think you speak of the lights near the grille?) were changed in 1990 because of the laws here in Germany. I think you've got integrated turn signal/parking light - here it's not allowed to have yellow parking light so these lights are now used for the turn signal only (Don't know but I think 1990 there wasn't any possibility to get yellowish bulbs here legally ...) and the bulbs for the parking light went into the headlamps - no problem until you want to change the headlamps because they're yellowish ...
You're speaking of the "Continental"? The pre-owner of the car thought there was to many place left, so he decided to do something against - I like it! Our LSC has got the "Lincoln"-hood ornament - not original but here in Germany noone knows