Awesome photo. Three Rivers was always astroturf. That is definitely the Three Rivers outfield fence. I posted a question about this on TMF's facebook page. Clemente's final hit was a double (confirmed by Retrosheet). Doesn't it appear that Clemente is standing on first base? Or is that not the first base line in the foreground? I can't think of any other reason for Eddie to be handing the ball to Clemente, other than for his 3000th hit. But if he's on first base, it's not that hit. And if it is his 3000th hit, and he's on second base, why would the first baseman be handing him the ball? Somebody crank up the Mystery Machine.