[LMH]

And yes, it does pretty much boil down to what AC Cars Ltd supplied back in the day to a degree. Of course, numbers matching original drivetrain plays a role in the cars originality and has a big effect on it's value but most original cars are not really very "original" any more. Bodies have been repaired, brakes have been changed, engines have been fixed, rebuilt, altered and so on. I saw a car that the owner told me was totally original and there's three different SW gauges of different years in the dash. It's still an original car though.
Larry