Hi peeps

I'm sitting browsing through pictures and old FastFord/Performance Ford Mags and I'm struggling to find out what the thing I'm looking at is called.

I've found a picture of an Escort on here with the things on:



The thing I'm refering to are the "lens covers" on the head lights, I've seen a lot of RST's and sierra's in this forum with them on, but never seen any one i Denmark with these.
So my questions are; what are they called, is it possible to purchase them from Ford or where?, and last but not least; do they serve another purpose then protection the headlights (not that that isn't enough for me to want a set)

If any one could please help me out, it would be greatly appreciated

thanks a bunch!