Davy,
I know what you mean. It’s the same as my Light 15.
The leather in my Light 12 runs level with the top of the passenger windows, down and around to the rear window. About half of the “C-pillar” is leather the rest is headlining material. There is also a blind running from bottom to top of the rear window! (operated by a pull-string above the driver’s door!)
It may be some time before I get it all back together again…!!
Good to see another pre-war Light 12, can’t be many left.
regards,
Alistair