The one in Heritage that sold in Feb of this year was a SGC 5, it blows this REA example in my opinion.
https://sports.ha.com/itm/baseball/1...umbnail-071515
also one just recently sold in PWCC Premier that looked killer, SGC 5 1952 mantle went for $156,00 So how are we getting to $306,000k 1 months later?? I have no idea ?
https://sales-history.pwccmarketplac...ms/PREMIER3873
If I had 1952 Topps Mantle SGC 5 of same caliber as this last one, I would be nervous to consign mine. Fearful it would only bring between a 100-150k, somewhat more normal. Not saying I don't believe the last sale just saying it's not normal to be to see that card going for $306,000.