How can you tell difference between 67-69 Barracuda doors

There are four things to look at all three doors are different (each one year only)

Mirror location
67 Forward

Lock location
67 Rear

Vent (bottom of the door)
67 Yes

Vent screw location
67 in the channel (68/69 one the panel above the channel)


Alan
Did 68's have the vent on the bottom?