This is the artist proof of Pin 43633 Dave Smith, director of the Walt Disney Company Archives and long-time Disney Historian, has selected the top 20 moments in Disney Theme Park History. This pin celebrates the classic Disney Attraction found around the world, Space Mountain®. This Limited Edition pin features a dangle that slides featuring the Dave Smith Collection logo. This is the ninth pin out of 20 in the Dave Smith collection. Dave says, "Space Mountain® premiered in Tomorrowland® in the Magic Kingdom® at the Walt Disney World® Resort on January 15, 1975"