Are you hoarding a stash of baseball cards in the attic? You could be sitting on some serious cash. Like cassette tapes or ...

What started as a routine visit turned into a jackpot of rare sports memorabilia—all for under $20. Among his remarkable finds: autographed cards from baseball legends including CC Sabathia, Don ...

As with all collectibles, the story tends to drive the value. Fortunately, baseball cards tell plenty of stories. Even though ...