I ran across this in this Houston Chronicle today. It's captioned:
Crowds gather on rooftops across from Shibe Park to watch the Philadelphia Athletics play the Boston Braves during the 1914 World Series.

Way before the Wrigley rooftops! Connie Mack not only managed the A's back then, he was part owner, and he hated people being able to see games for free. He went to court to stop it and lost, so before the 1935 season, he built a tall "spite fence" in right field to block the view from the rooftops.
Crowds gather on rooftops across from Shibe Park to watch the Philadelphia Athletics play the Boston Braves during the 1914 World Series.

Way before the Wrigley rooftops! Connie Mack not only managed the A's back then, he was part owner, and he hated people being able to see games for free. He went to court to stop it and lost, so before the 1935 season, he built a tall "spite fence" in right field to block the view from the rooftops.