bomb that landed on the third porch roof on the east (center field) side of Kenmore Avenue some 550 feet away. No batter has ever hit the center field scoreboard, but it has been struck by a golf ball hit by Sam Snead using a two-iron. Hand-turned scoreboard The scoreboard was installed in 1937, when Bill Veeck installed the new bleachers. It has remained in place ever since, and has only seen minor technical and cosmetic modifications. The clock was added in 1941, and a fifth row of scores was added to each side in 1961, with a sixth by 1969. A set of light stands facing onto the scoreboard was added in 1988 with the introduction of night games. Along with Fenway Park's scoreboard and Minute Maid Park, Oakland-Alameda County Coliseum and Oracle Park's out of town scoreboards, Wrigley is one of the last parks to maintain a hand-turned scoreboard. A number turner watches the score changes on a computer (a ticker tape machine was used in the past), and updates the scoreboard by manually replacing the numbers from within the scoreboard. The scoreboard is made of sheet steel. The numbers that are placed into the inning windows are also steel, painted forest green, and numbered with white numerals. The box for the game playing at Wrigley uses yellow numerals for the current inning. The clock, which sits at the top center of the scoreboard, has never lost time in its -year existence. Standing over the clock are three flagpoles, one for each division in the National League. There are 15 flags, one for each National League team, and their order on the flagpoles reflects the current standings. The entrance to the scoreboard is a trap-door on the bottom. On the reverse of the scoreboard, visible from the CTA elevated trains, is a blue Cubs pennant in white outlined in red neon. The scoreboard was extensively rehabilitated for the 2010 season. Unlike the home of the Red Sox, the scoreboard at Wrigley is mounted above the centerfield bleachers, rather than at ground level, making it harder to hit during play. No players have hit the current scoreboard, although at least three have come close: Roberto Clemente to the left side on May 17, 1959; and Bill Nicholson and Eddie Mathews to the right on August 22, 1942,{{efn|Ever since 1989, a home run hit by Nicholson in 1948—later identified as