1965 Dodge Dart Charger

Ulf, I believe the invoice was attached to the right quarter window (if you have room, or the right door window if you don't). I also believe the label would not have been attached to the driver's door for two reasons (a) visibility and (b) damage to the label from rolling the window up and down.

Invoice not on driver's window: Yep, I agree.

Invoice not on driver side rear window because visibility: No, I can't agree. Think about it: the driver doesn't (can't) use the rear window behind him. But he can and does use the rear window on the other side of the car.

State mandated amber reflectors or not

Red, but it doesn't matter because I'm sure they're no longer on the car!