Hi Chris,
It does look like the Tex Mirror, I started a thread on these things a while ago - I currently have three of the things sitting useless in my garage, I agree that they cannot be adjusted to any sort of useful position if mounted on the curve of the door, but I was about to mount them exactly as seen in this view, although this needs some adaptation of the Series2/3 chrome trim. It seemed to me that I could make them work in that position. In the end I asked the specialists to look into the poor fit of the mirror and went for clip ons for now.
If you do buy Tex ones, go direct to Tex, they are a little cheaper and you have a choice of flat or convex mirrors, illustrations and contact details on their website Search Google for Tex UK.
The thread referred to is here, if it helps:
http://etypeuk.com/forum/viewtopic.php? ... ght=mirror
Regards,