May 16, 2014 bobgruen Black Sabbath Black Sabbath, Central Park, NYC. August 15, 1971. <P>Image #: R-323 © Bob Gruen Ozzy Osbourne, NYC. August 15, 1971. <P>Image #: R-474 © Bob Gruen Bill Ward, Black Sabbath, Geezer Butler, Ozzy Osbourne, Tony Iommi
