Just to clarify, my initial thoughts is that some guy was trying to scam people. I'm not worried that they are from Jeff's collection. My concern is that they aren't being sold by Jeff, and the fellow who has advertised them denies they come from that collection. A bit suss.

Also, they are being advertised by a number of different seller IDs, who are saying they are in different locations. When questions are asked on Facebook pages about the cars being Jeff's, posts are deleted and I was even banned. Why would knowing these cars are from that collection be a problem? Doesn't make sense to me. Surely you'd be happy to let people know where they came from which would add to the history of the cars and increase the confidence of potential buyers.

Cheers
Jamie