The much beloved Wrigley Field, home of the Chicago Cubs, celebrates its 100th birthday on April 23, 2014, and one of its most distinctive features is the manual scoreboard. Along with Boston’s Fenway Park, it is one of only two stadiums in the majors with primary manual scoreboards.
In honor of Wrigley's anniversary, Associated Press photographer Kiichiro Sato was allowed to climb the steel ladder through the steel floor for a rare behind-the-scenes visit. Juding from the photos, little has changed in the past 100 years.
ABOVE: Scoreboard operators Brian Helmus, left, and Fred Washington look out at the field from inside the iconic scoreboard at Wrigley Field during a game on April 10.
Scoreboard operator Darryl Wilson keeps up with the game as he watches from inside the scoreboard on April 10. Wilson mans the two top floors of the three-level scoreboard, tracking scores from around baseball and changing scores and the uniform numbers of pitchers as managers in those games bring in relievers.
Scoreboard operator Brian Helmus changes scores from inside the board.
The Cubs play the Pittsburgh Pirates in this view of the field from inside the board.
Darryl Wilson uses a pen and paper to keep up with games inside the scoreboard.
Fans sit beneath the scoreboard at Wrigley Field in 2011.