383 Formula S, 4-spd, TX9 fastback Barracuda

67 trunk lids are usefully open on the inside like the hood. never seen one closed in, usually they are 68 and 69 but anything is possible

The car came with a 68 deck lid which I can tell by the holes. This 68 is filled in. In my search I've found what appears to be a 67 or 69 with a open frame type.
Is this a build plant thing or a production date thing IDK. I just want to make sure I get the most accurate part for my car.