Tomorrowland View-Master Reels

Viewmaster Reel A9521
Tomorrowland

Not to be left out, here is a GAF View-master reel set of Tomorrowland.  They are older than the 1973 Talking View-Master Reels from my collection because they show pictures of the WEDway PeopleMover and Mission to Mars which both opened in 1975.
Reel A actually refers to 'Mission Control for Journey to Mars.'  Does anyone know if that was an alternate name for the attraction or is this just a typo?