A box of rare baseball cards in pristine condition were discovered in a Defiance, Ohio attic in February, 2012. (Handout/Heritage Auctions)
A box of old baseball cards, neatly wrapped with twine, found in an Ohio attic is being called the Holy Grail of sports cards discoveries and could be worth millions.
"These gems emerged from a small Ohio town, discovered in an attic in a box forgotten for a century beneath an ancient dollhouse. You have a better chance of winning the lottery than of making such a rare discovery," said Chris Ivy, director of sports at Heritage Auctions, in a press release Monday.
The discovery was made by family members going through the Defiance, Ohio, home of their deceased grandfather in February.
The near-perfect condition 1910-era cards - 700 of them in all - feature baseball legends Ty Cobb, Honus Wagner, Christy Mathewson and Connie Mack, among other Hall of Famers.
A collection of the 37 best cards from a very rare series called E98 have been valued at $400,000 or more. Those will be auctioned early next month.
Most of the others are expected be sold over the next few years, for a total of up to $3 million, Ivy said.