Before electronic communication was as easy as we have become accustomed to, an office would be rented in the host city for planning and organization of the big game. This sheet is from the office set up for the game that would become known as Super Bowl I. The address on the letterhead is for an office building in Los Angeles, and only one of the four AFL/NFL championship games was played there. The permanent league office address and phone numbers for each league is at the bottom of the sheet.