Sorry, no pictures although I just did a set of vent windows for a driver resto that I am doing.
If you look at your vent window frame, you will see a flat area on the outside of the frame that is approximately 1/4" wide and goes the horizontal length of the frame. That is where this piece of weatherstrip goes and it covers the full length of the flat area.
Once installed, you really do not see the weatherstrip as that part of the vent window frame is below the top of the door. As the vent window frame is adjustable to fit the door glass contour and door frame weatherstrip, the actual location how far into the door slightly varies. Still, the piece of weatherstrip really is not seen once the vent window is properly installed in the door.
Regards,
Pete Morgan