29 open car wiper installation

[wrndln]

I have a 29 phaeton (29 roadsters are the same) I need to figure out how the electric OD_O1 wiper is mounted. I did a search her on the Barn, but found nothing. The wiper itself is mounted on the inside, unlike closed car wipers that are mounted on the outside. If anyone knows how the wiper is mounted (clips maybe?) I would appreciated you post a response to how it is correctly mounted. A picture would really help.
Rusty Nelson