To do that, I'd have to completely remove one light to show the sheet metal trim/bend, and I'm not up to that kind of effort right now. Otherwise, they look like bicolor front turn signal lights.
For more info, (fresnofinches@aol.com). Larry sells them.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.