Ali, Liston gloves, Shoeless Joe photo fetch $1.1M in NYC

The gloves of Sonny Liston, front, and Muhammad Ali, rear, sit on a table, Jan 22. Ali autographed both his gloves and those of Liston several years ago. [Photo/IC]

Autograph experts from two different authentication companies closely examined the signature on the photo of Jackson and determined it was the real thing, said Heritage Auctions said.

A baseball bearing Jackson's shaky signature brought $78,000 in 2011. Even a scrap of paper with his autograph sold for $23,100 nearly 25 years ago.

The photo of Jackson that sold Saturday was unknown in the sports memorabilia world until last year.