Sept. 6, 1971 SI Lot 276. Sept. 6, 1971 SI Issue with a Cover Autograph of Jackie Stewart, “the World’s Best Driver.” Ex-m copy with a sharpie 10 autograph. Stewart won Formula One world championships in 1971 and 1973. Authenticated by Kevin Keating. Winning Bid $20. Back to List Winning Bid $20 Back to List