[maple_leaf_eh]

As I recall ... there is a cord sewn into the front edge of the door fabric. It slides into a track on the windshield and secures with twist-knob buttons on the main body. The lower hinge of the door fits either a hole or a sheet metal 'holster' on the outside body. The top hinge fits a tube or hole attached to the top edge of the windshield. The door handle is just a swinging arm the catches on the pole in the side curtain.

There have been some good photos on the board lately. See how well this description matches the photo evidence.