Grille badge on some 63 Valiants, not others - why?

Doing a little more research.... looks like the Signets got the badge while V-100s and V-200s did not, at least according to the catalog, which would have been done in advance of production so at least that was the original idea. Maybe later they started putting them on all, or people just swapped them on or off.

s-l1600.jpg s-l1600a.jpg s-l400b.jpg s-l1600c.jpg s-l1600d.jpg s-l1600e.jpg