Well as you can see this has now been firmly identified as TF3079, which I believe makes it 2M2065 and the register puts it in Switzerland, but the last change was way back in 1986.
I'd love to get in touch with the current owner and get hold of a recent photo for my friend. Does the current owner happen to post on here, or is there anybody who can put me in touch?
Just a shameless bump here. I'm still trying to locate 2065 for the previous owner. Maybe any other Swiss owners could point me in the right direction?