notice the 'bars' that frame those recesses are painted, but with overspray all along them, and there are little tabs [where the cardboard is attached] right above each mark ... hang the covers from those tabs and as the painter sprays around the space he just jogs a bit to hit the covers .... the patchy black areas are where pieces of the sticky sound deadener tar paper was, same stuff as between the 'headliner bows', strategically placed to dampen the drumming resulting from large flat panels, placed after paint
Bill
