I say that about Mr. Hall, because I remember when this card sold at REA in 2013, and hearing at the time from multiple sources on good authority that he was the buyer. Note that it was in an SGC 60 holder when it sold at REA. I also remember when the crossover showed up as a 4.5 on the PSA pop report shortly afterward (a few months later at most, as I recall).
https://sports.ha.com/itm/baseball/1...ription-071515
https://www.robertedwardauctions.com...-only-example/
Whatever the case, this is a heck of an auction coming up, and it's just the first. It should be a true test of collectors' sentiment.