Last year my son sold his Morris 1000 aka Miss Piggy to someone from Wikiwirral for him to repair. It was very much in need of care and attention!
The buyer wanted to see the cars original logbook details to prove the provenance. My son couldn't find it at the time.
He now has it and can give it to the buyer if ha still wants it.
If he lets me know, I'll pass his details on to my son.