(2) NOS FoMoCo Interior Lights. Part number located on the positive wire is, C4MB 13A719C. The light housing measure 2-5/16" round. These interior light assemblies mounted on the rear interior roof piller on each side. The Ford Motor Company used these lights on their vehicles in the 1960's and early 1970's. Both light assemblies are in good condition and light-up fine. SEE PHOTOS.