Help Please W123 Wind Deflector (aftermarket) install - How do you do it ?

[greazzer]

This came with China Blue and I finally have room now in my garage for two cars (both W123s).

No instructions in the box, and it appears to be missing a washer. I am not even sure this is everything in the accessory pack. I installed the gasket (again, assuming this was the orientation of the gasket, but it seemed logical to go this way).

Does anyone have any instructions? The box it came in has a receipt from Eckler's going back to January 2018. I have bought from them in the past, but they don't have the best (in my opinion) customer service.

Not even sure how close this Air Deflector is to the back in the day Dealer part. This one is labeled made in Germany.