Difference between 67-68 barracuda doors?

Turquoise/teal door is a 67 or 8, and passenger side. You can see in one of the pics it has a bottom rear hole where the plastic vent used to be. Also you can see in the front jamb 2 rectangular holes that used to have a rubber flap over it. Also notice the "matching"(i think) glass in another pic. It doesnt have a rear support/ post, making it 67 or 8.

Also the rear 68 fastback glass is pictured...99% sure its 68. I got skirtwork to do(cook supper) I will post the 69 pics in a bit....