A 100-year-old contract, hand-written by Babe Ruth, is available for auction ... and is expected to rake in a FORTUNE -- up to a million bucks.
The document -- an endorsement deal with bat company Hillerich & Bradsby -- was written entirely by the then 23-year-old Ruth, and is dated September 9, 1918.
Ruth signed his name, "Geo. H. Ruth," 6 times on the paper ... so Hillerich & Bradsby could take the best version of his John Hancock and stamp it on bats.