Thanks for the link to the interesting article. The information is both interesting and yet troubling. The door is pretty surely the original as it is the correct color and has the factory crayon marks on it, so I assume the glass is original too, but the build date on my car is 06C. It's late now so tomorrow I will check the date codes on the glass to see where this leads us. This will be fun to see where it ends up. Here is a picture of the inside of the door.