Cleveland - The most popular card in the hobby continues to be the '52 Topps Mantle, according to Leighton Sheldon of Just Collect, and it isn't going away anytime soon.
Sheldon spoke with cllct's Darren Rovell about why the Mantle has become the "Holy Grail" of card collecting as well as why he continues to pursue vintage cards in seemingly increasing modern-card world.
Plus, Sheldon gives advice to newcomers to the world of memorabilia.