In fact, it's hardly been driven at all. The mileage is down as 39,416, which is less than 1,000 per year of its life (which started in 1968). It has had three former owners, all of whom seem to have contributed to maintaining that originality. It even has the original Jaguar-branded seat belts, tool kit (unused), handbook and more.
The seller says the bodywork is in 'lovely condition' and the cars 'starts on the button' and drives 'perfectly'.
As I write it's at £3,400, which sounds like good value for what you are getting here. More images and details on the listing.