The Houston team is also missing from the 1963 Post Cereal mini pennant set. At the time they were the Colt .45s. Don't know if this is the same issue with the team wanting additional revenue for use of the logo back in 1963, or whether this issue had to do with Colt Firearms.
The team had problems with the Colt Firearms Company about revenue from team merchandise sales with the Colt .45's logo. From my understanding, that is one of the reasons the team decided it was time for a new name and new logo when they moved into the dome so they would not have to continue to have issues over the Colt .45 logo.
Perhaps their issues with Colt Firearms being protective of their logo led the rebranded Astros to become very protective of their logo as well.
Here is a look at the 1963 Post Cereal mini pennants:
http://fleersticker.blogspot.com/201...-stickers.html