A new OEM Ford Tail Light lens Assembly that I got at an auction of vintage car parts.  This is part no. D1MY-13404-A.

For use on the right (passenger) side on all 1971-72 Mercury full-size passenger car models EXCEPT Station Wagons.

There are cracks in and around the clear plastic back-up light portion of the lens  (see photos 2 and 3).  There some other cracks along the side near the corner of the back-up light lens but I couldn't get a photo).

car auto automobile automotive classic exterior lighting 1971 1972 71 72