If I’m reading John H’s documents correctly, the bezels were installed on the Chevrolet side. Am i reading this correctly that the holes were punched in a painted fender?
Chevrolet Assembly - Front Sheet Metal Subassembly
All the color-painted exterior front sheet metal panels, plus the black-primed radiator support, inner fenders, and center grille support and the low-bake painted grille were conveyed to the sheet metal assembly area; all were in "Broadcast" sequence, matching the sequence of bodies on the main assembly line. Option holes for engine emblems, antennas, Vigilite housings, nameplates and moldings were pierced in large hydraulic fender piercing fixtures before the fenders were placed in the assembly fixtures.