ciao55 you are being a bit obtuse at best and missed the point entirely, Cucinando is exactly correct, Original unrestored = maintained,
thoughtful preservation,unmodified and correctly sorted. The value of the early Step Front is obvious, many were bastardized as race cars, engines swapped, rears changed out( eg, Dunlop brakes systems changed to ATE . 1750 being retrofitted etc. So to find an unmolested example from that time period is difficult.
As for my wife's vehicle the color change done by the PO is part of the cars history. The rest is as it came from the factory, with the numbers matching the build period. The Nardi is from 1963, and fitted by PO's.
As to the real value, you would have to pry that car from my wife's cold dead hands..
The older I get.. the faster I was....