69 Camaro BB blacked out panel?

[bigsixman]

Is it possible that the black rear panel cars were sprayed with gloss black after the car received its body color reflowed lacquer and then it would not take on the shine of regular black painted cars that received the reflowed process? That is basically what the above posted link says in it while addressing the black painted rear panels.

I am old enough to remember looking at these cars new in the showroom and the rear panel was not satin or flat black, they had a shine to them, but not as shiny as the regular black painted cars