I found a bunch of old baseball cards in my grandfather’s attic – they could be worth $3million thanks to rare detail

A BASEBALL fanatic has unearthed a trove of sports cards that could be worth a staggering $3million.  

Karl Kissner discovered the collection while he was tidying his grandfather’s attic in Defiance, Ohio.

APKarl Kissner unearthed a trove of baseball collector cards that could be worth up to $3million[/caption]

The bundle contained hundreds of collector cards, which dated back to 1910, and were in mint condition.

Karl discovered around 700 cards in total and the...