Road Runner Nest

In my '73 & '74 dealer accessories books it shows a dealer installed front spoiler you could order that goes underneath the front end. Illustration shows it on a Charger. But the description & application says it's for All Models. Stainless Steel #3621276 was $21.00, and Black Enamel #3621277 was $18.10. I doubt if very many of these were ordered.