Inside the Pan-Pacific Auditorium in October 1939, from the Changing Times: Los Angeles in Photographs, 1920-1990 online exhibit at the Department of Special Collections at UCLA. Full size.
Also: Jon Weisman gathered the pics relating to the Dodgers, the stadium or Chavez Ravine. I especially like the writers playing Scrabble in the press box during a game in 1968. L.A. CityNerd digs out some City Hall scenes, and Metroblogging's David Markland also enjoys the collection.
Previously: New toy for L.A. buffs