According to DVLA, the tax expired on this Ford Escort MK3 in 1996, so the 21,000 miles quoted is probably genuine!
From the seller: “I am selling my late fathers Ford Escort. It was a vehicle that when he no longer needed it as he bought himself a van, parked it to the rear of the property where it stayed ever since it has never been covered. There obviously is rust in various places, I would imagine it’s either a project for someone who really likes this car or use it as I don’t have vehicle for another Escort similar age, it’s only done 21,000 miles and my father was the second keeper from newI will try and answer any questions you may have. Please be aware this is equivalent to barn find non-runner and vehicle will need to be winched or manoeuvre down the side of the house and take it away on flatbed or trailer.”