Interesting thing is the bezel is labeled as a 2786547 but that never shows up in the parts books I have. Casting numbers don't always match the part number. I couldn't figure out what it fit because the right side and left side are slightly different where they fit around the headlight. I looked for a 1968 fastback for 2 years until I settled on the dodge diesel trucks as a sickness. Barracuda or Dart can come later in life....
The inner grille surround I have up should be made of pot metal (white metal) like many chrome trim parts for cars in the 1960s.