DETROIT (AP) - A baseball bat given by Tigers legend Ty Cobb to Detroit's postmaster will be auctioned off during All-Star week. The century-old, 34.5-inch bat used by "The Georgia Peach" is available to the highest bidder through Hunt Auctions. It belongs to a descendant of William Nagel, who was a friend of Cobb's. Nagel also sometimes threw batting practice to Cobb. Nagel's great-grandson, Duffy Ross, is the one who's selling off the bat through the auction at MLB All-Star FanFest in New York. The auction ends on Tuesday. The estimated price range for the bat is $75,000 to $125,000. Ross says "it's nice to know" his great-grandfather "played even a small role in the success of one of baseball's all-time greats."