From 68 1/2 to 69, Porsche used a new decklid and grill. They are commonly known as "3 bar," based on the grill. Like yours probably is, 3 bar grills get horribly deformed, though I've never understood why someone would actively press on the grill to close the decklid. To help strengthen the midway points between the center and outer bars, Porsche added two more making them 5 bar grills, and of course 4 more "hoops" or grill attachment points on the decklid opening.
3 bar aluminum decklids could exist but I've never seen one. My S came with a steel, 3-bar lid, same as my old 69E.
