There were allegedly other accessories that fitted it particularly in the 1960s as other Lancias had the same socket format. It was some sort of early standard but I can't remember what it was called. I haven't forgotten about photos, I have another one to restore that's a friend's so I'll probably go through the whole process on that one.
They were only fitted to early cars, series 1 berlinas and coupés, they were deleted at some point and I have brochures that mention the torch and ones that don't.